So I need a little help with the wiring setup. Reverse cams usually have 2 wires. One for power and one for the RCA connection directly to the receiver. For most setups when the RCA cable sends a signal to the receiver, the receiver over rides anything on the screen to give the back up camera the view. So the camera is normally powered through the reverse lights. When you put it in reverse, the reverse light gets power, which powers on the camera, which then sends a signal thru the RCA cable and the receiver switches to the rear view cam.
So The first issue is getting power to the camera with a switch. That's easy. 12v to it with a single pull single throw (I think).
The issue is here. I need to run power to the switch, and then run a DPDT that's ON-OFF-ON so that I control the cameras via power. I think I've got that figured out. The next problem is that there's only one RCA input on the back of the receiver, so I have to Y them both into it. I THINK I need to put some diodes on the RCA lines to make sure power doesn't run backwards to the camera that's supposed to be off and ruining my view. I don't know what size diodes to run if I need them.
This is all from my google research last night, so I think I'm in the right direction, I just need a little help clarifying stuff.
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owners,
