So I decided to get a rear dash cam, but can't find power source. The closest one is back passenger dome light, but it's constantly ON. I need it to be OFF when car is OFF like front 12V cigarette lighter. Any ideas..?
Appreciate the help.

 

 

Not trying to thread crap here, I'm doing a double dash cam setup in my uncle's Porsche and the blackvue he has allows the rear camera to be powered by the front (which I'm just going to wire to a powermagic pro and fuse tap that I think) and leave at that. To be honest I think if you're not running the ML system try looking into the +12v wiring for the power on that.

 

Thinking a line will need to be ran to the camera for that unfortunately. Nothing back there I can think of, unless something from the trunk might work.