Wiring Harness For Electric Trailer Brakes June 16, 2019 Mopar Electric Trailer Brake Controller . Mopar designed the Electric Trailer Brake Controller to be easy to connect to your existing trailer wiring harness. www.justforjeeps.com 7 Pin Implement Wiring DiagramWiring 4 Lights To One SwitchIce Cube Relay 120v CoilCeiling Fan Light BoxWhich Electrical Wire Is HotSears Thermostat Manual4 Pole 2 Way SwitchC Plan Wiring Diagram