Tekonsha 'T-One', Vehicle Specific Tow Harness Connectors require no splicing of vehicle wires. Simply locate your vehicle's wiring harness connectors behind the taillights, unplug the connections and insert the T-One connectors into the vehicle's harness, make some additional harness connections to the battery and brake pedal switch and you're ready to start towing. Included 7-way receptacle is compatible with 4, 5, and 6 pole adapters (not included) to fit just about any trailer system. The ModuLite module ensures that the tow vehicle's electrical system is compatible with the trailer's wiring, as well as safeguarding the tow vehicle's electrical system from harmful short circuits and overload situations. Also includes a brake controller adapter harness that provides a quick and easy plug-in connection to your brake controller. Intelligent trailer braking is the key to the success of the Tekonsha product line. From it's humble origins as a manufacturer of RV stairs and steps in 1964, Tekonsha has evolved to become a trusted name in towing safety. The core product line consists of brake controllers, electrical wiring and trailer brakes. The Tekonsha line has long been trusted by professional towers and weekend warriors for worry-free travel. Professional equestrian trainer, Stacy Westfall is sponsored by the Tekonsha line. Westfall trusts the safety of her horses to Tekonsha brake controls. Smooth, predictable stopping from all speeds has made the Tekonsha Prodigy, Primus, and Voyager trailer brake controls the best in class and the most popular brake controls on the market. No matter what you are towing, Tekonsha will help you stop it - Life is a journey, stop often.