This the main under dash harness for the convenience panel that connects to the door harness (door ajar) and low fuel harness. Fits 1967 Mercury Cougar and Ford Mustang. Has low fuel lead for Cougar on driver side, plug for low fuel on passenger side for Mustang. One plug is unused, depending upon application. This is a rare option, indicator lights would be installed in the center section of the dash panel. Unless, air conditioning was installed. If the car had factory A/C and the convenience option a console was required. Lights would have been installed in the console pad with air conditioning. This option not applicable with Mercury Cougar XR7.
This stand alone harness does not plug into the 14401 main under dash harness. The bullet connector with the grommet goes to a power source at the starter solenoid. The ring terminal from the fused lead goes to the ignition switch.
Ford part number for this harness is 13A769, it is probably C7ZB-13A769-A.