How do I connect AUX to a VDO CDR500 radio? Opel Vauxhall

See how to install a 3.5mm stereo AUX jack for the VDO CDR500 radio. Just remove the radio, remove the bottom metal cover from the radio, solder 3 wires to the printed circuit board and a 3.5mm jack socket. Using a 6mm drill, drill a radio housing and mount the socket from the inside. Make everything ready and ready;). Now you only need a CD-AUDIO with one song without sound and when you play this CD, when you play the audio through the aux, it will be heard in the speakers :).
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