I thought that the ring shaped bezel around the lighter socket was illuminated myself, but when I took it apart it was shiny gray plastic that wasn't possible to illuminate. It could have been a feature that was removed due to cost or supply problems, but maybe I'm missing something here. I know that the wiring was messed up when I got it, there were 3 wires and only the ground was connected. Hooking up one of the wires solved the problem, but I think the other one may have been for illumination and wasn't used.
If you need to see the lighter that bad, get a chrome one from an auto parts store. My old Crown Vic had a chrome lighter and I could see it with even the tiniest amount of outdoor or interior light at night.
-Matt