Vehicle specific replacement trailer wiring harness for vehicles originally equipped with a factory installed tow package – replaces damaged or missing factory harnesses. Quick and easy plug-in installation – no cutting or splicing necessary; simply plug into the existing vehicle connector and you are ready to start towing. Circuit protected ModuLite module ensures electrical system compatibility between tow vehicle and trailer, and protects the tow vehicle from harmful electrical shorts or incorrect wire connections. Included 4-wire flat connector is compatible with 5, 6 and 7 pole adapters (not included) to fit just about any trailer system.