Uh, right there on the side view mirror. ;). You guys are all show offs. I spent $15 and took less than 60 seconds for the install without having to cut any holes, so I'm feeling pretty good about my decision.
No clue why, but I like to have a gauge inside the car that shows the outside air temp. I know it shouldn't really matter, but for whatever reason, just something I like. I looked all over for a wireless, cheap gauge that I could put in the car and didn't find anything that I was happy with...