25' 4 Pin Flat Trailer Wiring Harness Kit Wishbone Style for Trailer Tail Lights

Wire connection instructions

1. White wire: Ground wire (negative pole), using size 18 to reduce corrosion and ensure installation safety.
2. Brown wire: tail light connection.
3. Yellow wire: driver's side parking/turn signal connection.
4. Green wire: Passenger side parking/turn signal connection.

25 foot trailer wiring harness

1. Cleverly designed: designed to separate at the tongue of the trailer and route along both sides of the trailer to ensure a neat wiring layout.
2. Sufficient length: A 4-foot trailer side ground wire is sufficient for your use, simply extend the existing truck to trailer wires.
3. No need for splicing: No need to splice new wires, just use this extender for extension.