I know this is petty but..... Have a '90 K5. Have dashboard out to install new stereo, speakers, and repainting dash while it's out. I found a single light hanging behind the stereo. First I thought that it may plug into back of a/c controller but can't find a place where it would go. Traced the wire back and it attaches to the top of the cigarette lighter assembly. I'm at a loss for where this light goes. Yes I'm a neat freak and I don't want to put everything back together knowing this one little bulb is hanging back there and is NOT where it should be. I have tried the Haynes manual and not much there. I have turned the lights on and everything in the dash lights up as normal. Anyone have a clue where this thing goes?