This is the 3 port isolation module and the 3 plug setup. Fisher plow 3 wire plug diagram 93 dodge radio wiring diagram 1973 ford f 150 wiring diagram 1999 f53 cruise control wiring diagram 2007 ford f 150 fuse box layout 2004 chevy tahoe wiring diagram 2002 pontiac montana radio wiring diagram 2005 gm radio wiring diagram 1995 ford alternator wiring diagram 2013 ford fusion wiring diagram 2001 ford. Fisher Plow 3 Wire W3 Port Module