4 Pin Trailer Wiring Harness Compatible with 1989-1995 Pickup, 1995-2004 Tacoma, Replace 55379‎ Vehicle Side Towing Hitch Wire Trailer Light Hook Up, Plug & Play 4 Way Flat T-Connector. Vehicle-Specific: 55379 Trailer Wiring Harness Compatible with 1989 - 1995 Pickup (X Excluding 1993-1995 Pickup T100) and 1996 - 2004 Tacoma (X Excluding 1995 5 Mid-Year model Tacoma).