Horn circuit for Saab 9-5 I facelift 2 (2005-2010)

BLK WIRE BLK/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE ENGINE BAY MAIN FUSE BOX (BEHIND BATTERY) FUSE 17 HORN RELAY (IN ENGINE BAY HORN SWITCH HOT AT ALL TIMES LEFT HORN (BEHIND LEFT SIDE OF GRILL) MAIN RELAY BOX) NCA WIRE RED/YEL WIRE RIGHT HORN SID CONTROL MODULE (ON REAR OF INSTRUMENT CLUSTER) STEERING WHEEL HORN/SWITCHES CONTACT UNIT (IN STEERING WHEEL, UNDER CRASH PAD) STEERING WHEEL SWITCH UNIT VIO/WHT WIRE W/ STEERING WHEEL AUDIO CONTROLS