bones

Found the problem with my interior light on my '78 SC Targa . I traced the problem to the drivers door switch situated in the front door pillar where the hinges are. The wire had broken off the switch and to make matters worse the brown wire has pulled through the bodywork back into the wiring harness in the car!!
After two long sessions of trying to locate the wires hole I haven't yet found it. I don't want to rip the carpet off (it seems really glued down) so visibility is limited . Anybody know the exact location of the hole or have any other brilliant ideas?