I'm also assuming it's an external temperature sensor as I turned the car into a sweatbox and it dropped from 16 to 15 degrees...
I only noticed it because I had the baby valet'd today, and I'm assuming the reason I thought it didn't work previous is because what little was coming off it was hidden behind dust or whatever.
Anyway, here it is:

Anyone have any idea how to get it brighter?
Edit: speaking of HERP DERP, forgot to include the image...