I ran the video input into the camera input, used a switch to ground (felt safer than +12v) the reverse input - (purple/white) and left the source on my A/V input. The audio comes through fine, but the video gets interrupted. The reverse input keeps the same audio playing, but switches to the reverse camera input when triggered. I just have to deal with the 'Image may be reversed' script warning on the bottom of the screen. I also have a backup camera hooked up, so, by using a relay to switch the video input, along with another relay to switch the reverse lights trigger to a - instead of +, I was able to beat that. It works fine, but it just doesn't feel cool to have to flip switches to watch movies. It makes me feel like I have an Alpine, again. I want voice activation. And a BB gun. And cherry bombs. And $3.00 to buy cherry bombs. And a time machine. And a remote-controlled head of lettuce.