Came out to a dead car recently, jumped it, started fine and maintained its charge. Noticed two times since then later when its dark out, the dashboard and door panel lights were on. As if someone pulled on the handle. Except that they don't turn off on their own like they should. One of the times this happened the radio (not OEM) was on... which will only come on when the car is on. Was wondering where this short is coming from, radio? dash? somewhere sinister? Its an old Alpine tape deck that used to be connected to a 6 disk changer- 6 disk has long since died and been destroyed. The tape deck isnt mounted to any mounting kit inside the hole. Any help would be appreciated as its annoying to go "check on" the car before bed to see if it turned itself on.