[dmjlambert]

I was hoping it was going to be your switch, because that is easier. There is really not all that much wire in the truck, so if you want to track down the problem and at least temporarily fix it, you may find that it is not too hard. I had about a dozen wires that were eaten by rats. I cut out the bad part and soldered a length of good wire in the gap, and used heat shrink tubing over the solder connections, and non-adhesive vinyl tape to bundle the wires again like factory. The rest of my harness was in surprisingly good shape. But almost every switch in the truck was bad, including headlight switch, dimmer, turn signal, heater.