This wiring harness extension kit allows a 7-way RV blade socket to be added to the front of a dinghy-towed vehicle. The socket plugs into a factory USCAR outlet on the vehicle. The wiring harness can then be plugged in between the vehicle and RV, connecting the 7-way RV blade wiring. This kit requires no splicing. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.