Trailer tow circuit for BMW 7 series E65/E66 (2001-2005)

2004 TO 2005 EARLY PRODUCTION 2005 LATE PRODUCTION TO 2006 2006 LATE PRODUCTION TO 2007 BLK/RED/YEL WIRE BLK/WHT WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS CIRCUIT FUSE GRN WIRE GRN/BLK/YEL WIRE GRN/ORG WIRE GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES LIGHT MODULE (LEFT SIDE OF DASH) REAR FUSE HOLDER (RIGHT REAR LUGGAGE COMPT) RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE TRAILER MODULE (2007: RIGHT SIDE OF REAR COMPT) TRAILER SOCKET YEL/BLU WIRE YEL/RED WIRE