2-Plug units are designed for brake controls that have a wiring port built into the back of the unit. Simply plug the brake control end of the wiring harness into the back of the brake control and the vehicle end into the automobile's port.
Use a brake control adapter and greatly reduce brake control install time.
The brake control adapter simply plugs into the OEM harness under dash and the back of the brake controller.
Works with Plug and Play brake controllers.