I just recently replaced all trailer light housings (rear & clearance) with new LED's. Did not replace any wiring since it all looked good still. Everything was working great until I took the boat in to wash it at the carwash & now I have lost ALL trailer lights. I know the problem is on the boat trailer since I hooked the tow vehicle up to another trailer & those trailer lights worked fine. How & where do I begin tracing the problem? Thanks