Finally solved turn signal fuse popping

Mt turn signals would frequently blow the TS fuse on the tow vehicle when hooked up to the trailer. After many hours of tracing wires in the trailer's turn signal wiring, I finally figured out that the trailer has back up lights incorporated in the rear scare lights. The TS fuse in the truck also fuses the back up lights. I cut the trailer back up light wire (green) and cured the fuse blowing problem. The trailer back up lights never worked as far as I know, so no big loss.