No, the radio display is one little light bulb that commonly goes out. Easy fix, and shouldn't have anything to do with the mirror. The temp sensor not being intact wouldn't have anything to do with the mirror as a whole not working, either. There is a separate set of +/- wires for the temp sensor, so the worst that would happen is you wouldn't get a reading, or get an inaccurate one if something was wrong with the sensor. I suppose it could be a fuse
I was asking where you're located because we're going to have a w-body meet in Wheaton in a few weeks. If you can make it to that, I have several mirrors we can try to make sure it's not from the mirror itself.
