Hot off the press:
Monster has introduced the iCruze, a new device for helping users connect their iPod to a compatible car stereo. The unique interface can directly connect an iPod to a stock car stereo using its CD changer port. Monster also says that certain Alpine brand aftermarket car stereos are also compatible. Users can control their iPod using the built-in CD player controls on the car stereo (as well as on the steering wheel, if present). The small device fits in the dash behind the stereo and has no wires to cut or splice; it charges the iPod, and also automatically turns the iPod on/off with the car stereo as well as remember the currently playing song when powered off. Monster also offers an iCruze LCD Display for an convenient larger view of the song title and artist information--similar to that of the iPod display. The Display, which puts the iPod into docking mode when connected (disabling the controls), plugs into the iCruze and includes 2 meter cable for flexible wiring options. It will ship early this year for $250.
http://www.monstercable.com/icruze/survey/moreinfo_icruze1.asp