I got this recessed license plate with 2 lights in it off a 82 Ford Van. ,,,,,,and its getting closer to be welded inside this blue Chevy Van door then painted red and put on my van,,,,,
The 1962 Falcon club wagon had the license plate on the rear bumper. That would explain why you can't find the light, they were on the bumper too. The wires ran under the bed from the driver's side to the center of the bumper where the license plate mounted. You might want to crawl under and take a look. But without a bumper I would consider Don's idea with the recessed license plate bracket.