The iStore offers iPod2Car auto kit

The iStore is now offering the iPod2car auto interface for listening to music on your iPod through your car stereo. The $199 kit allows you to control your iPod’s Next, Previous, Fast Forward and Fast Rewind functions using your car’s radio. The iPod2car will work with all Dock Connector iPods (3G, 4G, and mini). “Compatible with many factory car stereos, iPod2Car retains the high quality audio by directly connecting your iPod to the CD changer input of the stereo, usually found in the back of the radio. Then you simply plug the cable into the Dock Connector on the bottom of your iPod or iPod mini. The one connection provides line audio output and charges your iPod.”