Curt Manufacturing 57008 Custom Vehicle-to-Trailer Wiring Harness Extension (Provides an Extra 7-Way RV Blade Connector in The Truck Bed | Packaged) Routes a 7-way RV blade socket into truck bed while retaining use of rear socket Simple plug-and-play design eliminates the need for cutting or splicing Allows for easy connection of 5th wheel or gooseneck wiring 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power 7' extension with right-angle plug for easy installation