Terminator, thanks again for taking the time to explain. I am connecting the camera to a GPS unit that switches to video when it gets a video signal (when camera gets power), so I'm not using the TV tuner or anything like that.

I think I am just going to tap my relay into the reverse light wire and call it a day. I appreciate all of your help, I'm sure that many will get good use out of it.

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2003 530i, Silver on Grey, BC Coilovers, Square 9.5" M-Parallels, Gloss Black Roof
2007 328i, Alpine White on Black, Sport/Nav/Premium
SOLD: 2006 X5 4.8is, Lemans Blue on Black