2002 Dodge Ram Pickup Trailer Wiring | etrailer Call 800-298-8924 to get Expert Service ordering a Trailer Wiring for your 2002 Dodge Ram Pickup. Complete installation instructions and lifetime technical support on all Trailer Wiring purchases. Lowest price guarantee on accessories for your Dodge Ram Pickup and the fastest shipping available. 2002 Dodge Ram Hitch Wiring - CARiD Dodge Ram 2002, Towing Wiring Harness by Tekonsha®. One-year warranty. Wire up your tow vehicle and trailer with whatever it takes to get your trailer lights on, the electric brakes slowing down, and the trailer battery charging.