Horn circuit for Volvo XC90 I (2002-2006)

BLK WIRE BRN WIRE CENTRAL ELECTRONIC MODULE (CEM) COMPUTER DATA LINES SYSTEM CONTACT REEL ENGINE COMPARTMENT RELAY/FUSE BOX FUSE GRN WIRE GRY WIRE HORN 1 (FRONT OF ENGINE COMPT) HORN 1 (FRONT OF ENGINE COMPT) HORN 2 (FRONT OF ENGINE COMPT) HORN SWITCH HOT AT ALL TIMES NCA WIRE RED/BLK WIRE STEERING WHEEL MODULE WHT WIRE YEL WIRE