Originally Posted by onehundred80
Can you get a curcuit with the brown wire and the ground you are using? I am not too sure but if the bolt is in the light unit it may not be grounded.
Whats wrong with using the tail light ground wire?
The tail light is bolted to the body which is metal. It's easier and cleaner to do this than cutting into another wire. There are three wires coming from the reverse light socket, two black wires and one brown wire. I'm getting power to the wiring when using a voltmeter while in reverse, but the camera and monitor are not powering on. I don't get it. I have some experience with working on 12v accessories and custom wiring, and I'm stumped.