Electrical connection

[gthphotography]

Behind the headliner above the drivers side a pillar is this thing.
Any ideas as to what it may go to?
4 wires: olive with a brown stripe
Yellow with a brown stripe
Black
Grey with a brown stripe

 

[WILL.TILLERY]

does youre vanity mirror light up?

 

[gthphotography]

yeah, everything works from what i can tell, but it just seems odd. I haven't found it in rave yet, and I expect that to be extremely difficult cause I have to go page by page and hope to stumble across it.