...is really very easy. I sell my current 10Gb iPod on eBay for $150, and get a brand new "mini iPod"!
Well, OK... that doesn't really solve the problem of how to connect it to my car's stereo, but at least I would be trying to connect a new iPod instead of an old one :-)
Seriously though, with the multitude of iPod rumors floating around the Internet, one of them is bound to be true, meaning we will get a $100-ish smaller iPod with some nifty new features. When? Today, if the rumors are true. Of course, for me the point is really moot... even if I did hawk my old 'pod on eBay, I can't afford to be buying gadgets. My backside still hurts from paying all the Christmas bills (my office chair isn't very comfy).