Horn circuit for Porsche Boxster 987 (2004-2006)

2 7 15 TWO-TONE HORN SPLY CAN LOW CAN HIGH 22 20 22 HIGH RANGE HORN GND LOW RANGE HORN 39 40 CAN HIGH DRIVE CAN LOW DRIVE BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE COMPUTER DATA LINES CONNECTOR COMPUTER DATA LINES SYSTEM CURRENT DISTRIBUTOR FRONT END CONTROL UNIT (AT RIGHT SIDE OF FRONT LUGGAGE COMPT) HIGH RANGE HORN HOT AT ALL TIMES FUSE LOW RANGE HORN RED WIRE STEERING COLUMN COMBINED MODULE YEL WIRE YEL/WHT WIRE