Check the listing for details. Clam Shell Trailer Brake Control for 07-18 GMC Acadia 17 Limited Wiring Voyager. Condition: New. Listed at 133.99 USD. Includes Everything Pictured: Brake Control Unit Mounting hardware and bracket Vehicle specific Plug and Play Wiring Adapter Fits The Following Vehicles 2007 - 2018 GMC, Acadia, w/Factory 7-Way 2017 GMC, Acadia Limited, w/Factory 7-Way The Voyager® incorporates patented braking sensor by Tekonsha and is the best value you will find for smooth and secure trailer braking. It is compact size and features, like a bicolored LED brake monitor (to assure a complete connection to trailer brakes and give an indication of relative braking power being applied) make the Voyager® extremely versatile. Voyager® minimizes interference with tow vehicle electrical systems, uses a four wire hook up, has a broad setting range and is compatible with most any vehicle.