Mark had been asking about availability of Internet radio in cars. This isn't it, but if you've been wanting to wake to the dulcet tones of Greg Edwards or Ginger, this gadget will help make that a reality.
http://reviews.cnet.com/Roku_SoundBridge_Radio/4505-7866_7-31556321.htmlNot cheap, and it requires a wireless broadband connection, but if you've got those in place already and between 3 and 4 Franklins burning a hole in your pocket, you're there.