Horn - su Amazon AdRisparmia su Horn. Spedizione gratis (vedi condizioni) horn wiring for 2000 toyota tacoma - the12volt horn wiring for 2000 toyota tacoma - i need some help trying to install a hella horn. i need the wiring diagram for the horn on my 2000 toyota tacomaplease Tracing back horn wiring to cab | Tacoma World wwwmaworld››1st Gen. Tacomas (1995-2004)Tracing back horn wiring to cab. Yep the plan was to trace back the horn wiring inside the engine bay and try to find where he cut them. 1996 Toyota Tacoma.