Used lower wiring harness for the overhead console on the 67 Cougar XR7. Sometimes known as the Convenience Group Harness. This harness runs down the C pillar, under the door scuff plates and exits on the passenger side under the dash. That's where it connects to the under dash wiring harness.
The upper harness runs from the overhead console, under the headliner and back to the C pillar where it connects to this lower harness. You can get the upper harness here.
Ford Part Number C7WB-10C877-C