Loose wire connector

[Atrious]

I was disconnecting an accessory off of the battery on my 2009 when so came across a small ring wire connector. It is too small to fit on the battery. It is closest to the front on the positive and the wire runs toward the front into a gray wire harness. I cannot see where it goes from there. There is a plastic clip on the wire that looks like it keeps it in place somewhere but it is out. Any ideas on why it can be and where to hook it back up?

Thanks

[FJRoss]

Ambient temperature sensor. Ok as is.

[Atrious]

Thanks!

[FJRoss]

I assume this is what you are looking at...?
The thing with the small "lug" pointing downward in the middle of the photo to the left and below the headlight adjuster knob.

[raYzerman]

And it really should be pointing up. For Gen3, they put a screw in it, even higher and on the mirror stay.