This. I've had some insulation rub away on socket wires, and a little duct tape fixed that (electrical tape exposed to the elements rarely stays put). I also had to clean out a turn signal socket with some steel wool, to remove the corrosion, and make a good contact. The front end of our RC's catch/caught a LOTTA salt in the face back in the day, so don't be surprised to find worn insulation and corroded sockets that will take a Dodge SHERLOCK to track down. My horn wiring is practically shot, and needs to be redone next.