Oi, but do you know where I would tap? Thanks for the info so far!I am sure you can get a 12V power supply out of it. My friend wanted to put little lights in his car that would dim as he closed the door just like the cabin light on the roof. The problem with that is that the fuse comes before the switch. The switch is either a part of the complexe BCM (Body Control Module) if thats what its called in this car, or a relay somewhere.