Here’s something cool we came across at the car audio section of the Sony Booth:

Generic description:

This handy package lets you receive the great programming of SIRIUS through any 2004-up Sony stereo with satellite radio controls.

The SIRIUS radio plugs right into the back of your Sony stereo, and sends channel information, including channel name, artist name, program name, and song title, to your stereo’s display. The radio also features a built-in pass-through connection, so you can keep your Sony CD changer hooked up. The package includes a roof-mount SIRIUS antenna.

Note: A subscription to SIRIUS is also required.

This will be available at Crutchfield (and many other retailers) in mid Feburary for about $100.