had the same sort of problems that started when it rained or was wet and the got worse and blew thw l Headlight fuse everytime i replaced it. finally figured out the wires running from one side to the other at the front had been pressed against the radiator and were melted and shorting out. replaced about 2 ft of the 4 wires and clamped to something that would hold them a safe distance from heat....good luck