Tow Ready Trailer Wiring Kit for 4 Way to 7 Way Adapters with 25 ft Duplex Wire 20506

Use this wiring to install any 4way to 7way adapter. Once a 7-Way adapter is plugged into your 4-Flat connector, this is the kit you will need to wire the rest of it. It involves running one wire to the batter installing the circuit breaker and then running the other power wire inside the vehicle where it will give power to your brake controller.