HORN, Horn Wiring Diagram for GMC Pickup C1500 1992, List of elements for Horn Wiring Diagram for GMC Pickup C1500 1992:, (front of right front fender) g101, (left radiator support) g108, Base, Convenience center (left side of i/p), Fuse block (left side of i/p), Horn relay, Horn switch, Hot at all times, Left horn (below left headlamp), Park lp fuse 20a, Right horn (front of center radiator support), V22 only, , , COOLING FAN, DEFOGGERS, HORN, RADIO, POWER MIRRORS, POWER DOOR LOCKS, POWER SEATS, POWER WINDOWS, STARTING/CHARGING, WIPER/WASHER, ,