I just bought a 07 denali and want to have the tv work in the front while driving. Does anyone make something or no how to do this. I have a tv in my truck and can watch it.
If it's an aftermarket deck, there should be a wire that hooks to the e-brake wiring from the deck. It is so you can't watch video unless the e-brake is on. You should just be able to move that wire to ground and it works. That is how I have mine.