Having a problem that just started recently in my 86 GXL. The rear tail lights do not work, but the dash lights do? I'm stumped, replaced bulbs, checked fuse, and even replaced the relay from icemarks diy for the dash/tail light fix, which I originally did over a year ago. I did put in a new stereo, but as far as I can remember, the tails worked after install. I also read not to ground the illum wire, which it is not, it is taped off. Maybe it should be grounded? Any ideas help! Thanks.