I pulled the old stereo out and wired in a new one. Now the cigarette lighter is working again. As for the switch no typo had a wire running to one of the fuses(can't remember which one) and grounded to the frame. I just pulled it out. No idea what it was for. I've noticed that it is smoking especially when sitting in a fast food drive thru, but no loss of oil or coolant. Possibly egr valve?