Nothing is harder than tracking down an electrical gremlin. Everyone has been faced at one time or another with that problem that only seems to happen when the stars and moon have to line up perfectly
and the car has to hit the chuck hole at exactly 60 mph with AC/DC blasting on the stereo to blow a maxi fuse. I wish I had the magic tool to point right to the problem. Sorry, but we do carry tools to help you on your quest. If you do not see what you are looking for feel free to give us a call.