I got a new stereo for Christmas and don't need the cable anymore. It plugs into the back of the CDR-220 and connects to a power wire and ground (I think I used the plug for the integrated telephone). Then the other end plugs into your Ipod just like the charger, it does charge the Ipod while you're using it in the car.
It's not worth anything to me and I'm sure one of you could make use of it. So, you pay shipping and it's yours. So, $5-6 shipped in a padded envelope 1st class mail...
This is the cable and the place I purchased it from.
http://www.discountcarstereo.com/detail.aspx?ID=993
Happy Holidays!