83 cj7 random wire plz help

I found a random wire while i was checking the ground for my fuel sending unit

http://i27.tinypic.com/2eydy5f.jpg

http://i28.tinypic.com/9is5yq.jpg

any one know what it is??

and does anyone know where the pink wire gos for the sending unit? cuz i can find it :(

To me that looks like the wire the goes on top of the transfercase. I don't exacly know what it for, maybe the 4wd light?

do your backup lights work? or your temp. gage,although that wire looks alot like the positive side of your fuel sending unit.

Transfer case is right. It's for your 4wd indicator light.