As iPods become the way we listen to music everywhere, from the kitchen to the bathroom, auto manufacturers are getting with the program. Those FM transmitters that offer a quick-and-dirty stream from your iPod to your car stereo make your music sound like a weak radio broadcast, and tape adapters don't sound too great either, and add a mess of wires. Soon new-car buyers won't need to worry about plugging things into their cigarette lighters or buying an aftermarket stereo, as Apple has announced partnerships with Ford, General Motors, and Mazda to integrate the iPod seamlessly into their car-stereo systems. The different techniques for integration range from a simple line-in jack to an XM transmiter, upgrading the weak FM transmitters to digital quality. Some of these methods give you the bonus of being able to control the iPod using the stereo controls, rather than having to look at the iPod itself. Apple predicts that over 70% of new cars will have some form of iPod integration by the end of 2007. How well integrated the Zune will be has yet to be seen. — Adam Frucci