Trailer tow circuit for Cadillac SRX I (2003-2009)

BACKUP SUP VOLT BLK WIRE BODY CONTROL MODULE (BCM) (ON LOWER LEFT SIDE OF DASH) BRN WIRE DK GRN WIRE HOT AT ALL TIMES JOINT CONNECTOR LEFT REAR FUSE BLOCK (NEAR LEFT SIDE OF REAR SEAT, UNDER CARPET) LH POS PARK LAMP RELAY LH TURN SIG SUP VOLT LT GRN WIRE RED/WHT WIRE RH TURN SIG SUP VOLT RIGHT REAR FUSE BLOCK (NEAR RIGHT SIDE OF REAR SEAT, UNDER CARPET) SPARE FUSE SPARE RELAY TRAILER CONNECTROR TRLY PARK LAMPS W/O RIGHT REAR FOG LAMP YEL WIRE