I have to admit, I'd be curious to see the wiring on a Limited... It does appear that there is extra wiring in the pics that AirBorne1Cav posted (looks like 2 more, a grey and a green) but these could be for the wiring for so many other things (auto dim, heat for defrost).
I'm going to be adventurous and most likely take my panel off on Saturday. If I do, I will get some more detailed pics, and possibly hook up my meter and do some testing to see what is what.
**EDIT** I was able to blow up the picture, and it appears that there are two empty spots on the side where there are the additional wires JamesJaikissoon.