Like trailer hitches and ball mounts electrical connectors range all over the board in shape size and capability but no matter what your trailer s electrical functions are you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. This 4-way flat connector is designed to supply power for tail lights turn signals and brake lights as well as a ground connection. It features durable rubber-molded construction and is made with 12 of standard color-coded bonded loop wire to easily splice into your vehicle s wiring system. It includes both a vehicle end and trailer end and can be cut to splice into existing wiring or left as a loop to serve as a useful extension harness. It is compatible with all 2-wire vehicle systems.