Heh, I wonder if I could desolder the player's internal case temperature sensor and mount it somewhere outside the cabin with long wires.

Or you could do like I do... get a free thermometer from your friendly heating oil company and duct-tape it to your antenna.

Of course, knowing you guys, you'd then want to build a light-sensing circuit and a miniature spotlight to illuminate it when you were driving at night.

tanstaafl.