Black White Wire

[cwindham]

I am redoing my interior and I feel like an idiot right now. Well on the driver side I have wiring that goes to my speakers behind the seat and I have wiring that goes to my interior light which connects behind the driver seat.... well I am left with this black and white wire that I cannot find a connection to. Seems like I would be able to remember since it is only three wires but I have forgotten. Its been a couple months since I have taken my seat out so... If anyone can let me know where this connects I would appreciate it.

The wire does reach behind my seat but not like the others making me think I might have pulled this under the dash. Anyway if someone can help me out here I would appreciate it.