1998 Nissan Frontier Trailer Wiring | etrailer Call 800-298-8924 to get Expert Service ordering a Trailer Wiring for your 1998 Nissan Frontier. Complete installation instructions and lifetime technical support on all Trailer Wiring purchases. Lowest price guarantee on accessories for your Nissan Frontier and the fastest shipping available. 1998 Nissan Frontier Hitch Wiring | Harnesses, Adapters wwwd››Hitch Wiring›Nissan›FrontierNissan Frontier 1998, T-One Connector with Converter by Tekonsha®. One-year warranty. 3 Wire System. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the..