Volvo XC60 I (2008-2013) Horn circuit

BLK WIRE BLK/VIO WIRE BLU/BLK WIRE BLU/WHT WIRE CEM CENTRAL ELECTRONIC MODULE (CEM) (BEHIND RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT DISTRIBUTION BOX (LEFT SIDE OF ENGINE COMPT) ENGINE COMPARTMENT HORN RELAY COLD ZONE (CENTER REAR OF ENGINE COMPT) FUSE GRN/BLK WIRE GRY/BLK WIRE HORN 1 (LEFT FRONT OF ENGINE COMPT) HORN 2 (LEFT FRONT OF ENGINE COMPT) HORN CONTACT (IN STEERING WHEEL) HOT AT ALL TIMES NCA WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE STEERING WHEEL MODULE (IN STEERING COLUMN) CONTACT REEL (TOP OF STEERING COLUMN) VIO/GRN WIRE