HORN, Horn Wiring Diagram for Ford Aerostar 1990, List of elements for Horn Wiring Diagram for Ford Aerostar 1990:, , (not used), 20a, Fuse 16, Fuse panel, G206 (behind center of i/p, left side of ashtray), High pitch horn (behind right radiator support), Horn relay (behind left side of i/p, on relay bracket), Horn switch, Hot at all times, Low pitch horn (behind right radiator support), Nca, Steering wheel control switch, W/ cruise control, W/o cruise control, , , POWER DOOR LOCKS, HORN, POWER MIRRORS, DEFOGGERS, POWER SEATS, POWER WINDOWS, RADIO, STARTING/CHARGING, WIPER/WASHER, ,