2005 Toyota Tundra Trailer Wiring | etrailer Call 800-298-8924 to get Expert Service ordering a Trailer Wiring for your 2005 Toyota Tundra. Complete installation instructions and lifetime technical support on all Trailer Wiring purchases. Lowest price guarantee on accessories for your Toyota Tundra and the fastest shipping available. 2005 Toyota Tundra Hitch Wiring | Harnesses, Adapters Toyota Tundra With Factory Tow Package 2005, Multi-Tow™ 7 RV Blade and 4-Wire Flat Towing Wiring Kit by Hopkins®. To have a greater peace of mind when driving with a trailer, go with this perfect accessory that is sure to provide you..