G_Altima
Senior Member
If you have the trailer plug that i have, the center pin only provides power when the truck is in reverse.
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I have an aftermarket head unit and installed a camera just like this except i ran a wire along with the RCA video cable and hooked it up to the purple (its been a while thats just a guess) so it comes on when the truck goes in reverse and switches the display to the camera. i didn't like the idea of the camera being on when the truck was on figured it would last longer only running when the truck is in reverse.
I do not remember the colors off hand. I used the trailer plug on my truck and it has a diagram like the one below on it. I just spliced into the corresponding wires. The middle wire was the positive reverse wire and the one below that to the left is the negative. You can also ground the camera to some bare metal in the tailgate instead of running the negative wire.
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