Volvo S60 I (2000-2004) Horn circuit

BLK WIRE BRN WIRE CENTRAL ELECTRONIC MODULE (CEM) (BEHIND LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTACT REEL FUSE GRN WIRE GRY WIRE HORN 1 HORN 2 HORN RELAY HORN SWITCH HOT AT ALL TIMES RED/BLK WIRE STEERING WHEEL MODULE WHT WIRE YEL WIRE YEL/GRY WIRE