Originally Posted by seeskan

I installed the back up camera via a NavTool. I reluctantly wired a regular automotive relay to reverse light wire, to activate power to back up camera and NavTool's reverse switch, and believe it or not it worked. No capacitor , no diode , no flicker . I spliced into left reverse light wire where it came into trunk from the lower tail gate. it is white in color .
My car already had a DVD player installed in the back, with monitors in the back of the front head rests. I found a video out put from the player for "front monitor" free.
I hooked it up to video 1 input of NavTool. that worked too! (No I won't be watching movies while driving!)