1994 Dodge Ram Pickup Trailer Wiring | etrailer Lowest Price Trailer Wiring Guarantee. Installation instructions and lifetime expert support on all purchases of 1994 Dodge Ram Pickup Trailer Wiring. Order online at etrailer 1994 Dodge Ram Hitch Wiring - CARiD Dodge Ram 1994, T-One Connector by Tekonsha®. One-year warranty. 2 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 trailer battery..