Coomer - I know how to do it - IM me on AOL and we'll discuss - you have to change one wire on the radio and it " " should work.

Well I just checked about the ignition key ring. it'd work just like the dome light only you'd have a 2 second delay before it went off. the door would also have to be opened before the car was shut off or else it would turn the head unit off. that's the easiest way to do it but probably not what you're looking for.