Owner's Manual
Page 239
The five-wire light-duty harness is stored under the rear end of the platform hitch (if equipped). 4-57 yellowblue Trailer Wiring Harness Additional Heavy-Duty Wiring Light-Duty Wiring Harness An eight-wire harness is located at the left hand rear inner lower quarter panel. The additional heavy-duty wiring is located forward of the rear bumper and is attached to the center of the rear crossmember or the forward vertical surface of your vehicle.
The five-wire light-duty harness is stored under the rear end of the platform hitch (if equipped). 4-57 yellowblue Trailer Wiring Harness Additional Heavy-Duty Wiring Light-Duty Wiring Harness An eight-wire harness is located at the left hand rear inner lower quarter panel. The additional heavy-duty wiring is located forward of the rear bumper and is attached to the center of the rear crossmember or the forward vertical surface of your vehicle.