All vehicle specific brake control wiring harnesses are available in 2-Plug styles 2-Plug units are designed for brake controls that have a wiring port built into the back of 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 Brake controls that utilize the 2-plug style of wiring harness will be identified with the Plug Play logo BP1 - under or behind the dash, to the left or right of the emergency brake pedal BP2 - under or behind the dash, to the left of the steering column and brake pedal BP3 - under or behind the dash to the right of the steering column and brake pedal BP4 - kick panel area, on the driver's side BP5 - under or behind dash, behind the center console BP6 - under or behind dash on the passenger side, near glovebox BP7 - centered behind dash between the steering column and the radio