What does this wire go to?
 

I have been working on cleaning up my wiring and deleting what my car no longer will need. I was seeing if anyone knows what this wire goes to hooks from passenger side of the harness into the driver side right next to the fan relay seeing if anyone knows what it goes to before i decide to unhook stuff and follow it to what it goes to.Picture isn't the best but should be enough to show what I am talking about.
https://cimg4.ibsrv.net/gimg/www.thi...244f5c03b5.jpg