Thank You for watching the Horn Wiring video! Subscribe To This TH-cam Channel: th-cam.com/users/4g63mightymax See My Wiring Playlist: th-cam.com/play/PLsF7T1tRFy2hmiiUUfMZNyV-BUA_yrPIh.html
Hi, Thank the Lord for this site! The diagrams are a god send. Car electrical wiring has previously been a frightening mystery to me the diagrams make it so easy to understand and illustrate. This is now my go to site for assistance with wiring issues - thanks guys.
I dont know how often you read comments, but I'm loving your content. Thank you. I think your style of explanation and wonderful usage of displays is perfect. I wish you had a "parasitic draw" testing/diagnosing video. Some of the videos out there are scattered and hard to follow.
I read them all, but I get a lot, so it is hard to respond to every single one. I’m glad that you (and so many others) like the videos! I’m trying to explain circuits in a way that I would want to learn, and it seems that others learn the same way that I do. I’ll add your parasitic draw test to my to-do list. I have a whole bunch of cool stuff I’m working on already, so I could be a while, but I’ll get to it! Thanks again! I appreciate you spending time here!
If you found it interesting, you should definitely check this one out th-cam.com/video/Yz9kqxWkoHI/w-d-xo.html. It is way better, more complex, and by far my favorite wiring video that I’ve made! Thanks for staying up late for me!
Great video. Super clear explanation and made my install WAY easier. Thank you. I was missing pin 30 splice on my install and racking my brain to figure it out. Horns are working and now a much safer vehicle. I'm finishing at 2am. After almost having a dump truck change lanes without looking and crush me. Horns needed immediately. Thankfully my old Jeep is loud and he heard that but Horns are much better than exhaust 😊 Thanks again. Killer videos as always
Hi Jeremy! Just wanted to come on and say that this video helped me successfully wire a horn to an old BMW of mine, where the original system went haywire and I wasn’t able to diagnose why. I used your set up to wire the switch on the ground side, and basically bypassed the original wiring, and it worked like a charm! This was holding me up from getting the car to pass state inspection, so thank you! 🙏
That’s absolutely awesome! I’m always thrilled to hear that people are using these videos to fix their cars! Thanks for sharing that with me, and of course, watching the videos!
My comment is you need to mention Wire Gauge, fuse size . I have watched horn and turn signal and no mention of these important details. Besides that THANK YOU ! I way over think these circuits you Reign in my over thinking!
Thanks, I just did it on my bike 🏍 and it works 💪🏿 perfectly fine. I love it thanks bro I really appreciate your effort, time, and energy that you put out to make this video . Am from Jamaica 🇯🇲
By using the negative to the switch, that leaves the positive side alway on. Yes? If the switch is on the positive side, then the wires only have power at the moment switch is activated. Please give me a more thorough explanation if possible. I wired as you showed switching negative, horn works, I’m just concerned about potential problems. Thanks in advance. I have subscribed to your system. Thanks
@@stevederosa7415 - you are correct that the positive side of the relay does have power if you wire it directly to your battery. You could wire pin 30 to a source of ignition power instead and then the horn will only work and have power when the ignition switch is turned on. That may be what you are after. As I mentioned at the beginning of the video, there are many ways to wire a circuit and this is just one. You’ll also find that your starter on your car’s engine has power going to it all the time, and that’s a much larger amperage circuit. It likely does not have a fuse on it either, which makes it even more weird. But that’s how automotive engineers like to design starter circuits.
Hi Jeremy. Thx for the video, you should have mentioned why you need to use a Relay, it helps to POWER UP and it sends a more powerful and consistent 12V charge to the horn, without the Relay, the horn will sound like it’s dying or a cow in Heat !!! 👍🏻
Man, you really worth to subscribe. Never had the gut to messed up with wiring before. But your content encouraged me to start with my project. Thank you.
First time seeing this channel. I like the explanation and specifically the layout of the wiring, it makes it very easy to look at and read. Well done....
Excellent! I’m glad you enjoy the videos. I have a lot of different automotive related videos here, because I work on a lot of different things. People really seem to like the wiring though! Thanks for watching!
Hey Jeremy, thanks very much for the instructions. I followed them and the wiring job worked perfectly. You are an excellent teacher. You earned a new subscriber!!
Thankyou for a simple diagram and instructions. I now have a set of working horns. Word of advice.... do not buy ready made wiring harnesses from China as they are wrong as i found out the hard way. This way is so much more gratifying.. cheers dude 👍👍🔥
I used the factory steering wheel, it was a simple case of splicing the "black from pin 85" into the wire on the column switches that corresponded to the copper touch under the steering wheel. There was already an earth going back to the chassis/battery as part of that loom.
Perfect clarity.....very easy for me to understand. I have horns and a relay but have been afraid to instal them because there are no instructions included to explain whatwhat wire goes where. Thank you for taking time to make this video. 👍
just curious can the pin 85 go to the stock single horn wire coming from the horn pad ,, some wire kits have 2 wires going to the horn pad or switch,,,so i could ground the second wire will this work ,, what iam trying to do it add 2 more horns to making it 4 horns , i originally had 4 horns on the same car system on my 97 ford taurus drawing to much current blew a fuse ,, so i want to keep 2 car horns on the regular car system and add 2 more horns with the relay kit or posably put all horns with the after market relay
Great diagram! I have a momentary switch to a novelty horn, with red, black, and yellow wires. Black to ground, with yellow and red to each post of the momentary switch, which cycles the horn once, when pressed. My issue is, I am going to use an existing auxiliary switch in my Ford Bronco (6 pre-wired switches, with each one having one wire already routed to a fuse in the panel). Each auxiliary switch has an unconnected wire at the firewall, or other location. For example, to wire fog lights, I connected the ground from the fog light to the battery, and the hot wire to the existing wire at the firewall for that auxiliary switch. Ba-da-bing, the switch works the fog lights. My understanding of this is, I ground the black wire, and connect the yellow wire to the open wire for the auxiliary switch, since the switch already has a wire running to the fuse box. Thereby, not using the red wire to the horn. Is this correct? Thanks ahead of time!
I ordered relay and momentary switch from your list. I successfully wired my 2015 honda odyssey. I bought twin disc horns from Harbor freight. They have the same wiring as your except the white wire # 86 is out of the circuit to power another accessory device since it is carrying positive. Otherwise it is good. I followed yours. My new horn is working. I used one 14 gauge house wire to pass through edge of rubber grommet wiring to breach the firewall into engine compartment it was down hill from there.
Hello! You should never use house wiring in a car. That’s solid copper wire, which is not intended for movement and will corrode, crack and break over time. You should replace that with proper automotive wire, that is properly fused. Otherwise you risk wiring and fire damage.
I want to use this for my switch to ground for my wiper. My wiper draws 20 amps. Can my wire size for the switch to ground be small like 20awg or 22awg? I think it makes sense since pin 85 is not going to receive much current. Pin 30, 86, and 87 will of course be big wires like 16 or 14 AWG. Just wondering if I can get away with a small wire on the switch to ground side
is it possable instead of using a button for the horns is to use the single wire to the horn pad ,, i have a 97 mercury sable with horns that ground to the body , i wanted to use the 2 stock horns and then add 2 extra horns to make my cars horns louder ,, kind of like train horns with a horn wire kit ,, my car does have a factory horn relay but i tryed 4 horns it blew the fuse , my car cant seem to handle 4 car horns
I'm just wondering how I can wire up a dual country/city horn setup using a toggle switch. I still want to retain the original meep keep horn on my 1989 Nissan Sentra for city driving but I want to install a separate set of louder horns I pulled from a junked Volvo S70 I can use as the country horn. I still want to use the horn pad as the momentary switch as it is natural human reaction to place your hand on the horn during driving.
I remember when I was kid 30+ years ago, my dad had a headlight on his bicycle that ran off of a generator that rubbed on the tire. If that existed that long ago, there must be some kind of tiny 12v bicycle alternator/generator you could use to keep a battery charged. Good luck in your search!
My car has a third wire attached to the power wires that go to the horns. The wire goes thru a TRANSIENT SUPRESSION CAPACITOR, and then to ground. The capacitor reduces the spike in the wiring at the relay contact points and internal to the horns. Without this capacitor the horn contacts or the relay contacts burn up from arcing , just like old time contact points on a car distributor.
Thank you for posting this video. I know you made it a while ago but I just followed it and have a question. I ran fused 12v power into pins 30 and 86. Power comes out from 87 to twin horns. Another wire runs out from 85 through a momentary switch (surface mount horn button) to ground. The horns are also grounded. When I push the horn button the contact inside the relay does not move. Then, with what might be a second problem, when I manually move the contact to close the circuit in the relay (whether I’m pushing the horn button or not), the horn makes a momentary noise, and sounds like it wants to toot, but that’s all. Every time I manually close the contact, the horns make the same noise. I’ve tried unhooking one horn, but get the same result. I’m using 18 and 12 gauge wire and harbor freight disc car horns. I’ve tested the horn button and the connections. Everything is good. I’ve also replaced the relay with no better luck. Any idea what I’m doing wrong?
I'm familiar with these relays but I always like to watch a 5min video to (hopefully) get it right first try. Good explanation I appreciate it👍 I've seen horns switched on either positive or negative, I wonder why some do it different.
DC current will pit contacts with the negative side striping off metal and causing pitting, in some cases it needs a buffer/shock absorber in the circuit to prevent this. DC flows from neg to pos and thus the arc condition/probability/ AC doesnt "flow". Picture AC as jiggling and has a different wiring needs. Also consider that a metal auto body is a built in Negative source and is utilized for cost savings.
Very useful indeed, although I would like to see this wiring done with an ignition switch integrated. Well, I suppose I just have to figure it out. Hope I wouldn't blow anything...
Hello Jeremy need help for horn not working on Agri farm machine which has 3 buttons I got one button to work but other 2 on sides not working ,need to get other 2 to work as warning for driver up top of machine ,no relay installed any where still can't get other 2 to work ,each push button switch has 2 wires going to it checked the wires for grounds or broken all good there thx in advance for help
#Salute to the video. I sint know where I went wrong. I have the dual disk horn from harbor freight and i wired them up like this and no sound at all. Bummer. Not many videos about installing horns to momentary push buttons
What if I got a 4-pin relay that already has a fuse attached to it (through the red wire) and the blue and white wires which are pins and the yellow one having a female insert attached. What are the white and blue used for?
A long time ago, I swapped out my vehicle's original wimpy horn for a bigger one and it wouldn't work. Nothing at all. What was missing? And if I tried the same on my 02 Ford Ranger, would I have the same problem? Is there a specific horn you need to use the factory steering wheel button?
Great diagram and explanation. I was wondering, however, if there was a particular reason why you wired the switch into the ground side of the inductor instead of the power side (splitting the white wire leading into terminal 86)?
Most horns are controlled on the ground side of the circuit. The horn button in the steering wheel just grounds a wire to the steering column itself and activates the horn. I think car makers do this so that they can save money on 1 less wire going up the steering column :D
my pin 30 wire is connected to pin85 in the relay that came with the Chinese horn. do i just run wire on pin 30 to a switch inside cabin and pin 86 to an inline 40 amp fuse then battery? 12 volt 40 amp "air horn" and advice is appreciated
Tell me something. Why does a horn pad on a steering seem to be touch sensitive giving us a varied degree of tone versus simple on-off (like Jeep)? If i want this ability (friendly honk) what switch is required?
Okay this taught me something. BUT! BUT! What i am looking for is a way to, using the stock horn button switch between to horns. Case in point an electric air horn and the stock horn. I have some ideas. But I'd like to see something on a board like you did for that.
I just wired dual horn's on a Honda monkey using the stock wiring and switch. When done the horn's only work with the key off. Does the extra relay need to be wired differently when using this configuration. I wired everything as you did here just using the stock horn switch and wiring. I ran the additional positive to the battery. And 86 and 30 are wired together. Any ideas? Thanks for the video. Cheers
The easiest solution is to use a digital multimeter or test light to figure out what’s happening. It sounds like your 85 terminal is only ground when your bike is off and it is positive when the bike is on. If that is true, then you’ll need to send pin 86 to your horn switch wire and ground pin 85.
I don’t know anything about Canadian tire, though it sounds cold to me. As for the horns, you need a relay if your switch and or wiring cannot handle the amperage load of the horn. So it all depends what horn you use and how much amperage it draws through the circuit. Check out the first few minutes of this video where I explain it in detail. th-cam.com/video/y5Q3QOR4PnM/w-d-xo.html
Hi there, I love the way you explained it. I got an air horn with a relay and a toggle switch that has 3 wires & 4 pins (1 black & 1 red that connects 2 pins to positive & 1 red that connects the other pin to load). I'm confused if the toggle switch acts as a relay? And I don't understand how to wire the toggle switch through the Aire hor relay. Note, I'm adding an air horn as a spared horn & keeping my existing horn. Please advise. 🙏
What if i am trying to wire a train horn with my factory horn that is activated by the factory horn button located in the steering wheel. But i want a toggle switch to be able to use either the factory horn or train horn.
Great video, trying to wire a momentary switch to a second air horn, followed this layout and horn doesn’t sound. Any suggestions? Relay is brand new, connections look solid, not sure where else to start looking for issues.😅
I don’t know if you still reply on comments but I have a question? Can I connect the positive of this horn to where the positive of the previous horn was. Mine does not work. And can I just connect the negative of this horn to where my previous negative horn was. My wires are green and black so I am assuming that the green is positive and the black is negative
I have a question. My air horn has 2 small compressor and 2 relays. And both 86 pins on both relays say I have to Ground it. But in your video I see you used pin 86 and pin 30 to run to the positive side of the battery with a fuse. Can you help?
If your air horn came with instructions, I’d recommend going with what the instructions say. I’m just some guy on the internet. That being said, you can wire things a lot of different ways depending on what the goals are. A lot of horn buttons in steering columns are wired like my video shows. Air horns are typically a separate horn & button entirely. So that is probably why they are different.
Im trying to get my car horn to honk when i arm, disarm, and pulse honk when i press and hold the lock/panic button. I found the white 12v siren output from the alarm that sets off the horn and wired it to a relay. when i press lock, it honks once, unlock it honks twice like it's supposed to. BUT when i hold the lock button for panic, it just blares, no pulse, just hooooooooooooooooooooonk til i disconnect or disarm. I put a flasher relay on that wire coming off the alarms white 12v siren output and got the panic to pulse honk like it should but now when i lock it, no honk, unlock is one honk. what im wondering is, is there a way off that 12v wire i can run one wire with the adjustable flasher relay to pulse honk and another so that when i press lock, it honks once, unlock honks twice.
Thank you for this video, I added a compressor horn to my tractor exactly like your diagram and it works great. Can I add fog lights to my motorcycle using this exact same method? Thanks again.
![How To Test and Diagnose Relays and Wiring [4 & 5 Pin]](/img/n.gif)
Thank You for watching the Horn Wiring video!
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If you have one wire horns (case is the ground). Where do you put the momentary switch? Yellow wire? Prefer not the red wire?
Hi, Thank the Lord for this site! The diagrams are a god send. Car electrical wiring has previously been a frightening mystery to me the diagrams make it so easy to understand and illustrate. This is now my go to site for assistance with wiring issues - thanks guys.
That’s fantastic! I’m happy that I’m able to help out so many people!
I dont know how often you read comments, but I'm loving your content. Thank you.
I think your style of explanation and wonderful usage of displays is perfect.
I wish you had a "parasitic draw" testing/diagnosing video. Some of the videos out there are scattered and hard to follow.
I read them all, but I get a lot, so it is hard to respond to every single one. I’m glad that you (and so many others) like the videos! I’m trying to explain circuits in a way that I would want to learn, and it seems that others learn the same way that I do. I’ll add your parasitic draw test to my to-do list. I have a whole bunch of cool stuff I’m working on already, so I could be a while, but I’ll get to it! Thanks again! I appreciate you spending time here!
It’s 1:30AM. I have no idea why I’m awake or what the heck landed me on this video, but here I am.
If you found it interesting, you should definitely check this one out th-cam.com/video/Yz9kqxWkoHI/w-d-xo.html. It is way better, more complex, and by far my favorite wiring video that I’ve made! Thanks for staying up late for me!
By far the best video for any aftermarket horns
Thank you! I’m glad you enjoyed it!
Great video. Super clear explanation and made my install WAY easier. Thank you. I was missing pin 30 splice on my install and racking my brain to figure it out. Horns are working and now a much safer vehicle. I'm finishing at 2am. After almost having a dump truck change lanes without looking and crush me. Horns needed immediately. Thankfully my old Jeep is loud and he heard that but Horns are much better than exhaust 😊
Thanks again. Killer videos as always
Love the old school diagram. Do not change a thing. This is the way it should be ,hands on real world. Thank you for doing this.
I’m glad you enjoyed the video! This is the way that I always thought it should be taught. Thanks for watching!
Hi Jeremy! Just wanted to come on and say that this video helped me successfully wire a horn to an old BMW of mine, where the original system went haywire and I wasn’t able to diagnose why. I used your set up to wire the switch on the ground side, and basically bypassed the original wiring, and it worked like a charm! This was holding me up from getting the car to pass state inspection, so thank you! 🙏
That’s absolutely awesome! I’m always thrilled to hear that people are using these videos to fix their cars! Thanks for sharing that with me, and of course, watching the videos!
My comment is you need to mention Wire Gauge, fuse size . I have watched horn and turn signal and no mention of these important details.
Besides that THANK YOU !
I way over think these circuits you Reign in my over thinking!
Thanks, I just did it on my bike 🏍 and it works 💪🏿 perfectly fine. I love it thanks bro I really appreciate your effort, time, and energy that you put out to make this video . Am from Jamaica 🇯🇲
That’s amazing! Glad you got the horns working on your bike! Thanks for watching! :)
Got an aftermarket horn wired up and working off my steering wheel push now, thank you big man
Seriously, within the first 3 seconds, I knew this was the video I needed. Thanks.
Heck yeah! I appreciate it! Thanks for watching!
Thank you for creating this! I was able to add a horn to my ex police dodge charger with your help!
Heck yes!🎉 congrats! I’m glad it helped you out!
Dude you make everything so much easier! Thank you!
Haha! Thank you! That’s the goal! Tell your friends to subscribe!
This is one of the best presentations on TH-cam. Thanks
That’s awesome! Thank you so much! I appreciate you taking the time to watch!
By using the negative to the switch, that leaves the positive side alway on. Yes? If the switch is on the positive side, then the wires only have power at the moment switch is activated.
Please give me a more thorough explanation if possible.
I wired as you showed switching negative, horn works, I’m just concerned about potential problems.
Thanks in advance. I have subscribed to your system.
Thanks
@@stevederosa7415 - you are correct that the positive side of the relay does have power if you wire it directly to your battery. You could wire pin 30 to a source of ignition power instead and then the horn will only work and have power when the ignition switch is turned on. That may be what you are after.
As I mentioned at the beginning of the video, there are many ways to wire a circuit and this is just one. You’ll also find that your starter on your car’s engine has power going to it all the time, and that’s a much larger amperage circuit. It likely does not have a fuse on it either, which makes it even more weird. But that’s how automotive engineers like to design starter circuits.
Sweet ! Grateful to have this tutorial. Working on getting my 65 Galaxie electrical all upgraded 🌟⚙️
by the way, what gauge wire do you recommend, 16? thx...
Hi Jeremy. Thx for the video, you should have mentioned why you need to use a Relay, it helps to POWER UP and it sends a more powerful and consistent 12V charge to the horn, without the Relay, the horn will sound like it’s dying or a cow in Heat !!! 👍🏻
Man, you really worth to subscribe. Never had the gut to messed up with wiring before. But your content encouraged me to start with my project. Thank you.
So far all your videos are super, you explain everything in a very simple to follow instruction. Thank you for share your knowledge with us.
I need a relay. Damn horn just rings it's head off without one. Cheers for the simplified tuition. 👍
Happy to help! Good luck with your project!
Keep making these videos . You are a born teacher .
Thank you! That’s extremely kind! I appreciate you watching!
Thank you so much! Now i have my dual horn working! And i thought i burned down my relay on my 1st try hahaha LIKE & SUB! worth it
Your the mannn I’ve been f ing with a 66 mustang with a after market column that has Chevy wiring and this just saved me 😂
Glad the video helped you out!
Thank you for the video, was VERY HELPFUL!!!!
Keep up the good work!
I’m glad the video helped you out!
Thanks for your video upload(s). I got my trucks aftermarket horns back operating smoothly after fuses kept popping.
Excellent simple video to understand. Thank you for sharing this with all of us. 😊
First time seeing this channel. I like the explanation and specifically the layout of the wiring, it makes it very easy to look at and read. Well done....
Excellent! I’m glad you enjoy the videos. I have a lot of different automotive related videos here, because I work on a lot of different things. People really seem to like the wiring though! Thanks for watching!
OMG THANK YOU. Me, being a visual learner, this was awesome. THANKS SO MUCH
You’re very welcome! This is the way I wish that I was taught too! Thanks for watching. Lots more coming soon!
Hey Jeremy, thanks very much for the instructions. I followed them and the wiring job worked perfectly. You are an excellent teacher. You earned a new subscriber!!
That is awesome! Thank you for sharing your success! I’m glad that you found the video helpful!! You rock!
Thankyou for a simple diagram and instructions. I now have a set of working horns. Word of advice.... do not buy ready made wiring harnesses from China as they are wrong as i found out the hard way. This way is so much more gratifying.. cheers dude 👍👍🔥
Excellent! I’m glad the video helped you out! Enjoy those horns!
I love this video. So helpful. Thank you so much. Ill pass my vehicle inspection now!
That’s fantastic! Thanks for watching!
I am very inspired by your videos such that i intend to rewire my old Isuzu 1996 pick up truck
Excellent! Good luck with the project!
Thank you for this! Looking to possibly do something like this to power the horns properly in my 65 Mustang. Much appreciated!
Excellent! I am glad that you found it helpful!
Thank you for sharing…this is definitely the easiest explanation, for me, on the use of relays.
What if you are using the factory steering wheel horn push as the switch?
I used the factory steering wheel, it was a simple case of splicing the "black from pin 85" into the wire on the column switches that corresponded to the copper touch under the steering wheel. There was already an earth going back to the chassis/battery as part of that loom.
Perfect clarity.....very easy for me to understand. I have horns and a relay but have been afraid to instal them because there are no instructions included to explain whatwhat wire goes where. Thank you for taking time to make this video. 👍
Awesome! I’m glad you found the video helpful!
AWESOME VIDEO! i watched another and wired the horn on my bike and it didn't work. this makes it easy to understand. thanks
Great! I’m glad you found it helpful!
just curious can the pin 85 go to the stock single horn wire coming from the horn pad ,, some wire kits have 2 wires going to the horn pad or switch,,,so i could ground the second wire will this work ,, what iam trying to do it add 2 more horns to making it 4 horns , i originally had 4 horns on the same car system on my 97 ford taurus drawing to much current blew a fuse ,, so i want to keep 2 car horns on the regular car system and add 2 more horns with the relay kit or posably put all horns with the after market relay
Excellent illustration!!!
Thank you! Glad you enjoyed it!
I am starting to understand car wiring, thanks Jeremy.
You are very welcome! Thanks for watching!
Great diagram! I have a momentary switch to a novelty horn, with red, black, and yellow wires. Black to ground, with yellow and red to each post of the momentary switch, which cycles the horn once, when pressed. My issue is, I am going to use an existing auxiliary switch in my Ford Bronco (6 pre-wired switches, with each one having one wire already routed to a fuse in the panel). Each auxiliary switch has an unconnected wire at the firewall, or other location. For example, to wire fog lights, I connected the ground from the fog light to the battery, and the hot wire to the existing wire at the firewall for that auxiliary switch. Ba-da-bing, the switch works the fog lights. My understanding of this is, I ground the black wire, and connect the yellow wire to the open wire for the auxiliary switch, since the switch already has a wire running to the fuse box. Thereby, not using the red wire to the horn. Is this correct? Thanks ahead of time!
Thanks for this clearly explained information, I just used it to wire up my truck horn👍🍻
I ordered relay and momentary switch from your list. I successfully wired my 2015 honda odyssey. I bought twin disc horns from Harbor freight. They have the same wiring as your except the white wire # 86 is out of the circuit to power another accessory device since it is carrying positive. Otherwise it is good. I followed yours. My new horn is working. I used one 14 gauge house wire to pass through edge of rubber grommet wiring to breach the firewall into engine compartment it was down hill from there.
Hello! You should never use house wiring in a car. That’s solid copper wire, which is not intended for movement and will corrode, crack and break over time. You should replace that with proper automotive wire, that is properly fused. Otherwise you risk wiring and fire damage.
That was just the one piece. Everything else is 16 awg soft wire from HD. I will change it out. Thx
I want to use this for my switch to ground for my wiper. My wiper draws 20 amps. Can my wire size for the switch to ground be small like 20awg or 22awg? I think it makes sense since pin 85 is not going to receive much current. Pin 30, 86, and 87 will of course be big wires like 16 or 14 AWG. Just wondering if I can get away with a small wire on the switch to ground side
Best discription I ever listen to you should be a Teacher
Thank you! I’d like to be a teacher someday, but I’d like my classroom to be a million TH-cam subscribers. :)
is it possable instead of using a button for the horns is to use the single wire to the horn pad ,, i have a 97 mercury sable with horns that ground to the body , i wanted to use the 2 stock horns and then add 2 extra horns to make my cars horns louder ,, kind of like train horns with a horn wire kit ,, my car does have a factory horn relay but i tryed 4 horns it blew the fuse , my car cant seem to handle 4 car horns
Help a lot first time doing electrical work to this extend really grateful for the video (2024)
Thanks for watching! I am thrilled that it helped you out!
Thanks for making the video. Really helped me make sense of it all. You've got a new Subscriber here!
Excellent! I really appreciate that!
Great tutorial and explanation for your wiring diagram.
Thank you! I’m glad you liked it!
What is the appropriate wire size for a vehicle..?
It all depends. Luckily, I made I video to answer your exact question. Here you go. th-cam.com/video/EhzN6UdnmPA/w-d-xo.htmlsi=_rgChqRlBkIsvV8q
I'm just wondering how I can wire up a dual country/city horn setup using a toggle switch. I still want to retain the original meep keep horn on my 1989 Nissan Sentra for city driving but I want to install a separate set of louder horns I pulled from a junked Volvo S70 I can use as the country horn. I still want to use the horn pad as the momentary switch as it is natural human reaction to place your hand on the horn during driving.
Finally, a horn for my bicycle! But all i need is something to keep the battery charged when I'm pedaling 🥲
I remember when I was kid 30+ years ago, my dad had a headlight on his bicycle that ran off of a generator that rubbed on the tire. If that existed that long ago, there must be some kind of tiny 12v bicycle alternator/generator you could use to keep a battery charged. Good luck in your search!
I just use a drill battery for my bike horn!
My car has a third wire attached to the power wires that go to the horns. The wire goes thru a TRANSIENT SUPRESSION CAPACITOR, and then to ground.
The capacitor reduces the spike in the wiring at the relay contact points and internal to the horns. Without this capacitor the horn contacts or the relay contacts burn up from arcing , just like old time contact points on a car distributor.
Thank you for posting this video. I know you made it a while ago but I just followed it and have a question. I ran fused 12v power into pins 30 and 86. Power comes out from 87 to twin horns. Another wire runs out from 85 through a momentary switch (surface mount horn button) to ground. The horns are also grounded. When I push the horn button the contact inside the relay does not move. Then, with what might be a second problem, when I manually move the contact to close the circuit in the relay (whether I’m pushing the horn button or not), the horn makes a momentary noise, and sounds like it wants to toot, but that’s all. Every time I manually close the contact, the horns make the same noise. I’ve tried unhooking one horn, but get the same result. I’m using 18 and 12 gauge wire and harbor freight disc car horns. I’ve tested the horn button and the connections. Everything is good. I’ve also replaced the relay with no better luck. Any idea what I’m doing wrong?
how would you make the wire diagram if the switch is for switching between 2 horns?
I'm familiar with these relays but I always like to watch a 5min video to (hopefully) get it right first try. Good explanation I appreciate it👍 I've seen horns switched on either positive or negative, I wonder why some do it different.
DC current will pit contacts with the negative side striping off metal and causing pitting, in some cases it needs a buffer/shock absorber in the circuit to prevent this. DC flows from neg to pos and thus the arc condition/probability/ AC doesnt "flow". Picture AC as jiggling and has a different wiring needs. Also consider that a metal auto body is a built in Negative source and is utilized for cost savings.
Very useful indeed, although I would like to see this wiring done with an ignition switch integrated. Well, I suppose I just have to figure it out. Hope I wouldn't blow anything...
In the inline fuse box, what gauge wire do i need? and what size fuse? for a Horn that is 12v / 1.5 amps. Relay is 5 PIN / 12V DC 30/40A. Thanks
Do you have a wiring diagram showing the switch on the positive battery pole? If not why not?
Thanks
Yea - right here. th-cam.com/video/W2Mr2Zgv1Ck/w-d-xo.html
Do the ground wires from the horns and momentary switch all need to be grounded to the same point?
Hello Jeremy need help for horn not working on Agri farm machine which has 3 buttons I got one button to work but other 2 on sides not working ,need to get other 2 to work as warning for driver up top of machine ,no relay installed any where still can't get other 2 to work ,each push button switch has 2 wires going to it checked the wires for grounds or broken all good there thx in advance for help
#Salute to the video. I sint know where I went wrong. I have the dual disk horn from harbor freight and i wired them up like this and no sound at all. Bummer. Not many videos about installing horns to momentary push buttons
Good day sir!
May I know the wire gauge that you use and also the how many amp is the fuse?
Sure! Check out this video - I explain it all! th-cam.com/video/EhzN6UdnmPA/w-d-xo.html
Thanks very much. No doubt the video will help me wire my truck's horn.. 👍
Excellent! I’m glad that you found it helpful!
What if I got a 4-pin relay that already has a fuse attached to it (through the red wire) and the blue and white wires which are pins and the yellow one having a female insert attached. What are the white and blue used for?
Very helpful video. Could you please tell me what the type of board you have used with all the holes in to cable tie the wiring circuit to thank you.
Trynna figure out how to get the original horn button to work for some horns
Well done, that was a big help in understanding the wiring question s I have and getting my Stebel Air horn hooked up on my motorcycle. New subscriber
Awesome! Thank you for subscribing! I appreciate it!
I like, looks like a good plan for a hone, Thanks!!!
A long time ago, I swapped out my vehicle's original wimpy horn for a bigger one and it wouldn't work. Nothing at all. What was missing? And if I tried the same on my 02 Ford Ranger, would I have the same problem? Is there a specific horn you need to use the factory steering wheel button?
Enjoy your video instructions. I will use your videos when I do my truck. Thanks
Do the amp hours need to match up from the converter I'm getting power from?
This was very helpful, still can't get my switch to work. Any help would be great...
Thanks bro its simple and easily understood.
You’re welcome! I’m glad you liked it!
Great diagram and explanation. I was wondering, however, if there was a particular reason why you wired the switch into the ground side of the inductor instead of the power side (splitting the white wire leading into terminal 86)?
Most horns are controlled on the ground side of the circuit. The horn button in the steering wheel just grounds a wire to the steering column itself and activates the horn. I think car makers do this so that they can save money on 1 less wire going up the steering column :D
What happened when we put button in red wire or white wire instead of black ground wire
Thanks you made it simple easy to understand
You’re welcome! Thanks for taking the time to watch my videos!
my pin 30 wire is connected to pin85 in the relay that came with the Chinese horn. do i just run wire on pin 30 to a switch inside cabin and pin 86 to an inline 40 amp fuse then battery? 12 volt 40 amp "air horn" and advice is appreciated
Thanks. Does it matter which is pos or neg? Is it OK to wire reversed or does polarity matter?
I believe on most horns it will work either way. It may sound slightly different each way though.
Tell me something. Why does a horn pad on a steering seem to be touch sensitive giving us a varied degree of tone versus simple on-off (like Jeep)? If i want this ability (friendly honk) what switch is required?
Okay this taught me something. BUT! BUT! What i am looking for is a way to, using the stock horn button switch between to horns. Case in point an electric air horn and the stock horn. I have some ideas. But I'd like to see something on a board like you did for that.
I just wired dual horn's on a Honda monkey using the stock wiring and switch. When done the horn's only work with the key off. Does the extra relay need to be wired differently when using this configuration. I wired everything as you did here just using the stock horn switch and wiring. I ran the additional positive to the battery. And 86 and 30 are wired together. Any ideas? Thanks for the video. Cheers
The easiest solution is to use a digital multimeter or test light to figure out what’s happening. It sounds like your 85 terminal is only ground when your bike is off and it is positive when the bike is on. If that is true, then you’ll need to send pin 86 to your horn switch wire and ground pin 85.
If I only install 1 horn do I still need a relay, and will a relay kit from Canadian tire to the trick?
I don’t know anything about Canadian tire, though it sounds cold to me. As for the horns, you need a relay if your switch and or wiring cannot handle the amperage load of the horn. So it all depends what horn you use and how much amperage it draws through the circuit. Check out the first few minutes of this video where I explain it in detail. th-cam.com/video/y5Q3QOR4PnM/w-d-xo.html
Where do you get the 12 v of power from? Doesn't a car battery have too much current?
Hi there, I love the way you explained it.
I got an air horn with a relay and a toggle switch that has 3 wires & 4 pins (1 black & 1 red that connects 2 pins to positive & 1 red that connects the other pin to load).
I'm confused if the toggle switch acts as a relay? And I don't understand how to wire the toggle switch through the Aire hor relay.
Note, I'm adding an air horn as a spared horn & keeping my existing horn.
Please advise. 🙏
What if i am trying to wire a train horn with my factory horn that is activated by the factory horn button located in the steering wheel. But i want a toggle switch to be able to use either the factory horn or train horn.
This is a great video!!!
Saved me a lot of work
Thanks😊😊😊
Great video, trying to wire a momentary switch to a second air horn, followed this layout and horn doesn’t sound. Any suggestions?
Relay is brand new, connections look solid, not sure where else to start looking for issues.😅
There's no firewall boot to pierce with a boot/wire tool? Would seem more appropriate than running in between the door and the car...
My horn button in my steering column has only 1 ground wire & nothing else. So how do I connect the relay to it?
I don’t know if you still reply on comments but I have a question?
Can I connect the positive of this horn to where the positive of the previous horn was. Mine does not work.
And can I just connect the negative of this horn to where my previous negative horn was.
My wires are green and black so I am assuming that the green is positive and the black is negative
I have a question. My air horn has 2 small compressor and 2 relays. And both 86 pins on both relays say I have to Ground it. But in your video I see you used pin 86 and pin 30 to run to the positive side of the battery with a fuse. Can you help?
If your air horn came with instructions, I’d recommend going with what the instructions say. I’m just some guy on the internet.
That being said, you can wire things a lot of different ways depending on what the goals are. A lot of horn buttons in steering columns are wired like my video shows. Air horns are typically a separate horn & button entirely. So that is probably why they are different.
Are you able to leave 87a on the relay as is, or do you have to attach a wire and cover the end with electrical tape?
What is that relay use for?
Great question! I even made a video to answer it. Check this video out th-cam.com/video/QCkfFCLa_Jg/w-d-xo.htmlsi=xkvOe-Q-chtrtnb2
Im trying to get my car horn to honk when i arm, disarm, and pulse honk when i press and hold the lock/panic button.
I found the white 12v siren output from the alarm that sets off the horn and wired it to a relay.
when i press lock, it honks once, unlock it honks twice like it's supposed to.
BUT when i hold the lock button for panic, it just blares, no pulse, just hooooooooooooooooooooonk til i disconnect or disarm.
I put a flasher relay on that wire coming off the alarms white 12v siren output and got the panic to pulse honk like it should but now when i lock it, no honk, unlock is one honk.
what im wondering is, is there a way off that 12v wire i can run one wire with the adjustable flasher relay to pulse honk and another so that when i press lock, it honks once, unlock honks twice.
Really great video. Thanks man! Putting a oooga horn into my 77 chevy g20. This should be a breeze.
Can i ask what is this white board he using?
Brother which fuse use 30a or 40a
hi, Jeremy, what is benefit of Horn Relay? Or why do we need a Relay. ?
Hello! I actually made a video specifically for this exact question. Check this one out th-cam.com/video/QCkfFCLa_Jg/w-d-xo.htmlsi=V-kcDo8dwg-ob46h
Thank you for this video, I added a compressor horn to my tractor exactly like your diagram and it works great.
Can I add fog lights to my motorcycle using this exact same method? Thanks again.
As long as you swap out the switch for a regular toggle switch, this would be great for fog lights!