Used wiring harness that plugs into the rear of the 1970 XR7 switch panel when you have factory rear defog. Individually colored plugs for the switches. This harness is marked D0WB-10B923-F. There are a total of three wiring segments or harnesses for the 1970 XR7 with rear defog. The additional ones are the power lead harness, and the long wired one that goes to the blower motor. Please see your wiring schematic for clarification.
Ford part number D0WY-10B923-C or D0WB-10B923-F,