2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 32Get this manual
GENERAL INFORMATION 05, 06:
ECM 5P (BLACK) ECM 21P (BLACK) CONNECTOR ECM 21P (GRAY) CONNECTOR ASSIST HEADLIGHT 2P (BLACK) CONNECTOR MAIN WIRE HARNESS HANDLE SWITCH 10P (GREEN) CONNECTOR CONNECTOR
MODE SELECT SWITCH 4P (BLACK) CONNECTOR 4WD SWITCH 2P (GRAY) CONNECTOR HORN SWITCH CONNECTOR (U type only)