If your vehicle is not equipped with wiring for towing a trailer CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple plug-and-play electrical device that plugs into your automotive electric system and provides a standard universal trailer wiring connection. This is done using two or more vehicle-specific OEM-compatible connectors to plug into the taillight assembly eliminating the need for cutting splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific and while they are not available for all vehicles they do offer one of the fastest easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Ford Fusion (to verify your vehicle compatibility see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it s the boat landing at your favorite fishing spot maybe it s a campsite that overlooks one of nature s masterpieces or maybe it s the next big jobsite. However turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease giving you a long-lasting electrical connection for your towing hitch setup.