Towing your vehicle behind your RV is a great way to experience more of the adventure on your cross-country excursions. Whether you're towing a compact car or a full-size truck, CURT has the perfect solution to help you Bring It! CURT towed-vehicle RV harnesses are a vehicle-specific, plug-and-play solution to wiring your vehicle for dinghy towing. They use original-equipment-compatible connectors to plug into your vehicle's wiring system without any cutting, splicing or soldering required. They provide a standard 4-way flat connector to plug into the RV socket and synchronize the vehicle's tail lights, turn signals and brake lights with the RV's. Because each towed-vehicle RV harness has a vehicle-specific design, installation is fast and easy. This RV harness add-on connector is designed to install together with a CURT RV harness and provide a standard 4-way flat connection for towing with your vehicle. When your vehicle is not being dinghy towed, this add-on allows you to plug in, hitch up and tow like any standard vehicle-trailer combination. It supplies your vehicle with a 4-way flat connector at the rear and feature a plug-and-play design for no cutting or splicing during the installation process. This particular add-on can be used with certain RV harnesses with 3-wire systems.