I have a 92 gmc I just bought. The problem I am having is I have no tail lights. I have break lights,backup lights,flashers, everything except tail lights. I also have front parking lights that should work with the same fuse as the tail lights. I have new bulbs and I also bought new connector bars for the tail lights still not working. I have checked the tail light wires and I am getting no fire where they plug in to the light connector bars. Is there something I am missing? I would be thankful for any help.