How to Install a Trailer Wiring Harness

Installing a trailer wiring harness allows your trailer’s brake lights, turn signals, and running lights to sync with your vehicle. Follow these step-by-step instructions to install a wiring harness safely. 1. Tools & Materials Needed ✔ Trailer Wiring Kit (4-pin or 7-pin harness)✔ Wire Cutters & Strippers✔ Electrical Tape or Heat Shrink Tubing✔ Crimp Connectors…