What Is lights & wiring?
Lights and wiring work covers everything electrical on the trailer: tail, brake, and marker lights, the 4-pin or 7-pin connector at the hitch, the harness running the frame, and the ground connections that cause most of the mystery problems. We diagnose with a tester rather than guessing, replace corroded sections with marine-grade wire and heat-shrink connections, and upgrade old incandescent fixtures to sealed LEDs that survive being dunked at the ramp.
