Outstanding video! Excellent idea with the fuse tap. I do have a question as I am unfamiliar with the fuse taps. Do you think there is a fuse tab where I could run a light bar and some dish lights when the high beams are on?
I have the RC grill lights that has the same wiring harness and want to do this. However, the relay I have is a little different than what you have. The relay has 85 87 86 30. So is 85 ground? 30 to the fuse tap?, 87 white (12v)? and 86 blue the trigger wire? Thanks for the help
30 and 87 will be your closure. So, hook Blue to 87 and white to 30. I can't find a diagram showing me which is the positive and the negative. 85 and 86 should be positive and negative. Before installing it I would hook 85 to negative side of battery and 86 to positive side of battery and see if the relay engages using a voltmeter checking for continuity. If not I would swap them around. @@beardeddude2613
Thanks for the info, one question i have is do i have to run a new wire from the new relay to the ground on battery? Thats the only wire im seeing in the diagram that is not in the wireing harness.
Just depends on the Wiring of the Lightbar. Most Lightbars come with a wiring harness which has a switch. So if you want to keep that in tact then you will need a relay to replace the switch. If you just have a positive and negative connection, then you just wire the positive to the High Beam Relay and the Negative to the negative side of the battery.
Awesome will try this today with my 2018 z71 maybe that's why I lost my toggle switch 2 days ago 😂 because this video popped up 😂 thanks for the video 🤙
Considering other accessory lights can I just use a fuse tap? For instance if I bought a license plate frame lights that I wanted on when the fog lights are on can I just tap that light into the fuse for the fog lights? Basically I’m confused by the need for the relay?
The Relay in this Scenario is to replace the Switch. You could technically wire the light straight into the fuse tap by cutting all the wiring harness loose, but then you would loose the option for the wireless remote. For your setup, yes you can just tap into the fog light fuse to power the tag light.
So I understand your diagram and what not and doing similar for ditch lights and a led light bar, what would you do for a 3 wire switch instead of a 4? Mine came with red, black, and just white on the switch, just go to a 3 pin 20 amp relay instead or wire white to both terminals and stick with the 30 amp relay? Thanks.
The rough country switch is a 3 wire switch, 2 wires are for the closure, and 1 is voltage to be able to illuminate the red light on the switch. I would have to see a wiring diagram for your switch to know what colors do what. All you need to figure out is which two wires turn the lights on when shorted together.
I know this is an old comment, but I was just watching this and thought the same thing, and came to the comments to see if I was crazy. The second relay is unnecessary. You can just connect the blue wire from the original switch to the fuse tap and then the white wire to ground. Then when the high beams are turned on it will activate the original relay that came with the harness. No second relay necessary.
Nope, I'm an idiot, don't do this. It works, but it sends the full headlight power through the circuit and will blow a fuse. Thank god for fuses. Definitely need the second relay.
If you set it up like this it will always come on with your high beams, but I did not try to turn it off with the remote once it was on with the high beams. I will try that and get back to you.
On my 2020 it was easy, install the bar, hook up power and tap the high beam fuse in the fuse box, no splicing. I went to install a new bar on my 2024 Chevy Silverado and all was going as planned until I got to the high beam fuse…there isn’t one. Just two fuses for the right and left headlamps. Any thoughts? Or just install a separate switch which I really don’t want to do. It was super nice having it come on with the high beams.
Dang that’s crazy, I just looked up the manual and yea, I can’t find a high beam. I wonder if they are just using the same fuse for power and then a relay to switch between the two. I will try to look in the gmupfitter website when I get a chance. I definitely recommend checking out the website. That’s where I get all the detailed schematics to figure out how I can make wire modifications.
After looking over the schematics, I would check fuse F7 which is under the hood. It looks like that’s how it gets triggered. I would first check to see if it has voltage on the fuse without the high beams on.
Same issue here. When I tapped into left headlight fuse(no independent high/low beam fuses), the headlight, running light, front marker lights wouldn't work). They've changed up the electrical architecture for how the lights are triggered. I'll give fuse F7 a shot and see what happens.
We both have the exact same truck, except for color, and I have also done many of the same upgrades as you have……I have the Rough Country grill light kit installed and I want to also install a behind the grill light bar and wire them both to come on with my high beams……Can you tie two separate circuits into one fuse tap or do I need a separate fuse tap for each circuit? Thanks for your help!! My next modification is going to be the LED footwell lights
Thanks for the watching and the support! You can technically tie to into the same fuse, but I don't think I would recommend it with two light bars. I am thinking that you would probably be reaching/or close to the maximum amps on that circuit. If I remember correctly, I think there are two high beam fuses: LT High Beam/RT High Beam. I would separate them if there are two. I love the footwell lights, I have been thinking about upgrading to a better quality kit, the Bluetooth controller range is not very good on mine, I have to get the phone right beside the controller to change the lights. I would check out the OPT7 footwell lights, they seem to be better quality, but are still not crazy expensive.
Thank you for this. I purchased the high clearance bumper from rough county with the same light however it has 4 fog lights on the left and right side. Is it possible to tap into the original fog light set up following your example on the video? Same truck setup.
Yes, you can attach any lights to your fogs as long as the aftermarket lights combined with the fog lights don't exceed the amps allowed for that fuse. I would first plug the light in and use a DC clamp meter around the Positive side to see how many amps the light draws. then I would add how many amps each fog light uses. As long as you are below the amps on the fuse, you should be good.
Great video! Quick question about the connections on the 12v relay. Bottom right is for the fuse tap, bottom left is for the direct connection to the negative terminal on the battery (or any ground, right?), and for the top 2 connections, since it's replacing the switch, does it matter which wire is connected? You've got blue on the top and white on the bottom, but it shouldn't matter right since the relay is what closes the circuit when the high beams are turned on right? I am wiring a pair of Nilight 4" pod LED's to the high beams and the wire harness w/ relay looks very similar but the wires are not blue and white. So just wanted to be sure. Thanks!
Correct bottom right is for the fuse tap. And yes you are correct, there is no polarity for the other wires for the closure. Thanks for watching! Glad to help!
I didn't go over that because you don't have to have it in line with the setup. If you do want it, I got it from Rough Country for $25. It just plugs in line with the connection for the LED Light Bar.
Ok so i’ve got an issue on my Subaru Crosstrek. The high beams are also the daytime running lights. I can’t fuse tap the high beams fuses because they’re hot. Is there still a way to have aux lights turn on with the high beams? I’m not even sure if i can splice the high beam wires at the light harness because again, i think it’s the same wire for DRL and high beams
@@quintano20 Don't know, but it doesn't matter cause it is just for the closure, so it isn't passing any current through it. It's only purpose is to turn on the Rough Country Relay which I believe is a 30 Amp and it does pass current through it.
Will this work with a 2024 GMC 2500? From what I understand, the 2024 wiring architecture is different in that the new headlights are triggered by the ECM to headlight mounted CANBUS for power to headlight? I've tried to tap into left headlight circuit at fuse box and headlight will stop working intermittently. Thoughts?
Hi I need your help. I have a 5 pins relay which is 30, 85,86, 87a, and 87 which one I am going to connect blue and white cable from switch that I cut? Also which one is going to fuse tap and battery negative? Thanks in advance.
You will need to connect the fuse tap to the positive on the relay and the negative side of the battery to the other side of the relay. A lot of times the positive and negative connections are different colors than the closure connections on the relay. To find out which connections close, take a multimeter and select the the continuity mode and put your leads on two of the connections to see which connections close. You should hear the multimeter beep when the relay closure is triggered by voltage. The blue and white will be connected to those two connections and doesn't matter which one goes on which. You are just looking for the blue and white to make a closure.
Hi all. New F150 is the same 1 fuse for the computer of the truck and it regulates the lights high and low with other things so you will have to splice the light directly on the wire but might cause an issue with the computer as it regulates the load and light strength. Good luck i am hoing back to a switch....(sucks).
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Outstanding video! Excellent idea with the fuse tap. I do have a question as I am unfamiliar with the fuse taps. Do you think there is a fuse tab where I could run a light bar and some dish lights when the high beams are on?
Yes, you should be able to just tap into the high beam fuse to engage the relay to turn on the lights.
Great video very informative but I have a question can you run 2 spotlights and a light bar of the one four pin relay?
I have the RC grill lights that has the same wiring harness and want to do this. However, the relay I have is a little different than what you have. The relay has 85 87 86 30. So is 85 ground? 30 to the fuse tap?, 87 white (12v)? and 86 blue the trigger wire? Thanks for the help
Send me the model number of the relay and I will tell you how to wire it
Thank you! It's a dorman 84601
30 and 87 will be your closure. So, hook Blue to 87 and white to 30. I can't find a diagram showing me which is the positive and the negative. 85 and 86 should be positive and negative. Before installing it I would hook 85 to negative side of battery and 86 to positive side of battery and see if the relay engages using a voltmeter checking for continuity. If not I would swap them around. @@beardeddude2613
Thank you! 20 you know Where i would use the fuse tap?
@beardeddude2613 in one of the high beam fuses. Just make sure you put it in the correct way as I explain in the video
Thanks for the info, one question i have is do i have to run a new wire from the new relay to the ground on battery? Thats the only wire im seeing in the diagram that is not in the wireing harness.
Yes, you will run a new cable from the new relay to the negative side of the battery. Hope this helps.
Nice, thats alot better👍👍
So if I just wanted light bar to come on with bright lights I wouldn’t need a relay? Just the fuse tap and extra fuse?
Just depends on the Wiring of the Lightbar. Most Lightbars come with a wiring harness which has a switch. So if you want to keep that in tact then you will need a relay to replace the switch. If you just have a positive and negative connection, then you just wire the positive to the High Beam Relay and the Negative to the negative side of the battery.
Awesome will try this today with my 2018 z71 maybe that's why I lost my toggle switch 2 days ago 😂 because this video popped up 😂 thanks for the video 🤙
Glad you found the video just in time. lol Thanks for watching!
@@zachattackcustoms you're absolutely welcome! 🤙🔥
Considering other accessory lights can I just use a fuse tap? For instance if I bought a license plate frame lights that I wanted on when the fog lights are on can I just tap that light into the fuse for the fog lights? Basically I’m confused by the need for the relay?
The Relay in this Scenario is to replace the Switch. You could technically wire the light straight into the fuse tap by cutting all the wiring harness loose, but then you would loose the option for the wireless remote. For your setup, yes you can just tap into the fog light fuse to power the tag light.
@@zachattackcustoms Thanks ZACK! And thanks for taking the time to reply.
@@jeffreypaul8484no problem, just make sure the high beams and the light don’t exceed the amps of the fuse.
Hi do i need to remove the built in harness that is attach directly to the battery before?
It would not hurt, it's always a good practice to have things disconnected from the battery until wiring is complete.
Awesome video and very detailed thank you!
Thanks, love this setup. And love adding automation to the truck.
So I understand your diagram and what not and doing similar for ditch lights and a led light bar, what would you do for a 3 wire switch instead of a 4? Mine came with red, black, and just white on the switch, just go to a 3 pin 20 amp relay instead or wire white to both terminals and stick with the 30 amp relay? Thanks.
The rough country switch is a 3 wire switch, 2 wires are for the closure, and 1 is voltage to be able to illuminate the red light on the switch. I would have to see a wiring diagram for your switch to know what colors do what. All you need to figure out is which two wires turn the lights on when shorted together.
Would the relay already provided with the light bar be fine? No need to buy another relay?
You have to have a separate relay for the closure to engage the rough country relay to supply power to the light. The extra relay replaces the switch.
I know this is an old comment, but I was just watching this and thought the same thing, and came to the comments to see if I was crazy. The second relay is unnecessary. You can just connect the blue wire from the original switch to the fuse tap and then the white wire to ground. Then when the high beams are turned on it will activate the original relay that came with the harness. No second relay necessary.
Nope, I'm an idiot, don't do this. It works, but it sends the full headlight power through the circuit and will blow a fuse. Thank god for fuses. Definitely need the second relay.
@@VAGjew you was correct the first time, the only current that would pass through is the load of the relay coil which is next to nothing.
Does that still give you an option to have it remain off?
If you set it up like this it will always come on with your high beams, but I did not try to turn it off with the remote once it was on with the high beams. I will try that and get back to you.
On my 2020 it was easy, install the bar, hook up power and tap the high beam fuse in the fuse box, no splicing. I went to install a new bar on my 2024 Chevy Silverado and all was going as planned until I got to the high beam fuse…there isn’t one. Just two fuses for the right and left headlamps. Any thoughts? Or just install a separate switch which I really don’t want to do. It was super nice having it come on with the high beams.
Dang that’s crazy, I just looked up the manual and yea, I can’t find a high beam. I wonder if they are just using the same fuse for power and then a relay to switch between the two. I will try to look in the gmupfitter website when I get a chance. I definitely recommend checking out the website. That’s where I get all the detailed schematics to figure out how I can make wire modifications.
After looking over the schematics, I would check fuse F7 which is under the hood. It looks like that’s how it gets triggered. I would first check to see if it has voltage on the fuse without the high beams on.
Same issue here. When I tapped into left headlight fuse(no independent high/low beam fuses), the headlight, running light, front marker lights wouldn't work). They've changed up the electrical architecture for how the lights are triggered. I'll give fuse F7 a shot and see what happens.
@@MikeBrown-tt4zn did it work? I’m in the same boat mid- install as I type and just discovered this after buying the relay and fuse tap
Yes it’s fuse number 7 a 25 amp fuse… pulled it an high beam went off… going to test wire it now and Trump
We both have the exact same truck, except for color, and I have also done many of the same upgrades as you have……I have the Rough Country grill light kit installed and I want to also install a behind the grill light bar and wire them both to come on with my high beams……Can you tie two separate circuits into one fuse tap or do I need a separate fuse tap for each circuit? Thanks for your help!! My next modification is going to be the LED footwell lights
Thanks for the watching and the support! You can technically tie to into the same fuse, but I don't think I would recommend it with two light bars. I am thinking that you would probably be reaching/or close to the maximum amps on that circuit. If I remember correctly, I think there are two high beam fuses: LT High Beam/RT High Beam. I would separate them if there are two. I love the footwell lights, I have been thinking about upgrading to a better quality kit, the Bluetooth controller range is not very good on mine, I have to get the phone right beside the controller to change the lights. I would check out the OPT7 footwell lights, they seem to be better quality, but are still not crazy expensive.
@@zachattackcustoms I already have the OPT7 kit in my Amazon cart but I’m going with the 6 light kit so I can also do the back seat as well
@lbzmx213 nice, let me know how you like it, I may switch to it.
Thank you for this. I purchased the high clearance bumper from rough county with the same light however it has 4 fog lights on the left and right side. Is it possible to tap into the original fog light set up following your example on the video? Same truck setup.
Yes, you can attach any lights to your fogs as long as the aftermarket lights combined with the fog lights don't exceed the amps allowed for that fuse. I would first plug the light in and use a DC clamp meter around the Positive side to see how many amps the light draws. then I would add how many amps each fog light uses. As long as you are below the amps on the fuse, you should be good.
Great video! Quick question about the connections on the 12v relay. Bottom right is for the fuse tap, bottom left is for the direct connection to the negative terminal on the battery (or any ground, right?), and for the top 2 connections, since it's replacing the switch, does it matter which wire is connected? You've got blue on the top and white on the bottom, but it shouldn't matter right since the relay is what closes the circuit when the high beams are turned on right? I am wiring a pair of Nilight 4" pod LED's to the high beams and the wire harness w/ relay looks very similar but the wires are not blue and white. So just wanted to be sure. Thanks!
Correct bottom right is for the fuse tap. And yes you are correct, there is no polarity for the other wires for the closure. Thanks for watching! Glad to help!
Thanks so much for such a quick response!
Where would I put a switch in the circuit to have the option high beam/no light bar - high beam/light bar? Could it be basically anywhere?
I actually did a video on this: th-cam.com/users/shortsR0TfB-BvfEM?si=Ollu8Chi2VYw1PpU
You never explained where your wireless connector was in the wiring. I would like to do the same.
I didn't go over that because you don't have to have it in line with the setup. If you do want it, I got it from Rough Country for $25. It just plugs in line with the connection for the LED Light Bar.
Ok so i’ve got an issue on my Subaru Crosstrek. The high beams are also the daytime running lights. I can’t fuse tap the high beams fuses because they’re hot. Is there still a way to have aux lights turn on with the high beams? I’m not even sure if i can splice the high beam wires at the light harness because again, i think it’s the same wire for DRL and high beams
Will this work in Toyota tacoma?
Yes, as long as you have a separate fuse for the high beams.
@@zachattackcustoms with the link of the relay that you post. Was that a 30amp?
@@quintano20 Don't know, but it doesn't matter cause it is just for the closure, so it isn't passing any current through it. It's only purpose is to turn on the Rough Country Relay which I believe is a 30 Amp and it does pass current through it.
@zachattackcustoms thank you. I was looking on your videos how to attach the stuff in aux beam. Do you have the link for that video?
@ no problem, here you go: LED Light Bar to High Beams control with AuxBeam Switch Panel
th-cam.com/users/shortsR0TfB-BvfEM?feature=share
Does the rc wire harness have to be connected to the battery
Yes, the relay is replacing the on/off switch, not the power.
@@zachattackcustomsgot a issue now have everything connected and working but the bullbar won’t turn on
@beetlejuice3419 have you tried shorting the switch wires together to make sure the relay is connected correctly?
@@zachattackcustoms yes and got nothing
I would check the connection to the battery and then check the connection from the harness to the bull bar.
Nice 👍🏼
do you have a link for that remote set up ?
I just bought it from Rough Country's website.
Will this work with a 2024 GMC 2500? From what I understand, the 2024 wiring architecture is different in that the new headlights are triggered by the ECM to headlight mounted CANBUS for power to headlight? I've tried to tap into left headlight circuit at fuse box and headlight will stop working intermittently. Thoughts?
You could always take power to trigger the relay from the high beam light wiring.
Any idea which wire? Using light to identify which wire "isn't" hot when only low beams are on, but have 4 wires that stay dead...
Hi I need your help. I have a 5 pins relay which is 30, 85,86, 87a, and 87 which one I am going to connect blue and white cable from switch that I cut? Also which one is going to fuse tap and battery negative? Thanks in advance.
You will need to connect the fuse tap to the positive on the relay and the negative side of the battery to the other side of the relay. A lot of times the positive and negative connections are different colors than the closure connections on the relay. To find out which connections close, take a multimeter and select the the continuity mode and put your leads on two of the connections to see which connections close. You should hear the multimeter beep when the relay closure is triggered by voltage. The blue and white will be connected to those two connections and doesn't matter which one goes on which. You are just looking for the blue and white to make a closure.
Thanks for your help. It works
Any idea if your bull bar will fit a 2023? I just got a '23 and I don't see anything on their website that fits.
I can’t imagine they really changed that much. The biggest part of the refresh was the interior. I would call rough country and see if it will fit.
Hi all. New F150 is the same 1 fuse for the computer of the truck and it regulates the lights high and low with other things so you will have to splice the light directly on the wire but might cause an issue with the computer as it regulates the load and light strength. Good luck i am hoing back to a switch....(sucks).
Thanks for sharing.
Very nice!
Thanks!
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If anyone is curious, the 3rd gen colorado doesn't have a separate fuse for the highbeams.
Yea I noticed that on the new Silverado too, which is ridiculous. Thanks for sharing.
How do you wire Light Bar to High Beams using a relay with a Built-In Diode???😮😮😮
I would have to see a schematic of what you are trying to do.
Do this completely do away with the wire harness
No, you will still use the wire harness from rough country.