Connectors - Connectors by Pin Number - Wiring Specialties Connectors & DIY. Engine Connectors; Chassis Connectors; Connectors by # of Pins; MAFS Connectors; Injectors & Adapters; Alternator Charge Cables; Harness Rebuild Kits; ECU Connector Kits; ECU Patch Harnesses; Firewall and Harness Boots; Tools; Relays; Coil Pack Harnesses & Kits; LSx Gen III (LS1 Vortec) LSx Gen IV (LS2 LS3 L92) 2JZGTE; 1JZGTE2 Pin Connectors · 3 Pin Connectors Nissan 7-Pin Wiring Kit Nissan 7-Pin Wiring Kit. an inexpensive adapter will enable you to connect to 4-pin wiring should you need it. I also suggest that you purchase the wiring kit from Nissan (part # 999T8-BR20). Some aftermarket vendors will sell you a wiring harness for your truck, but they don't include the relays needed to make the lighting work properly.