Check the listing for details. CURT 56357 Trailer End 7 Blade Trailer Wiring Connector. Color: Black, Condition: New. Listed at 88.64 USD. EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness plugs into existing original equipment wiring on your vehicle and equips it with a standard RV blade 7-pin trailer wiring connector for plugging in and towing a trailer. HEAVY-DUTY CONNECTOR. The 7-way trailer wiring assembly can be used to connect trailer taillights, brake lights, reverse light signals, turn signals, electric trailer brakes and an auxiliary power wire. VEHICLE-SPECIFIC. This vehicle-trailer wiring harness package is designed for select models of the Nissan Pathfinder and Infiniti QX60 (factory tow package required). DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of the 7-pin vehicle wiring socket is made from durable black molded rubber that will never rust or corrode.