Manufacturer Part #: ZIP-AUDIO-IP1-B
For more permanent kinds of setups or even if you just simply don't want to use the mini-stereo connector on your iPod, use this retractable iPod dock connector to 3.5 mm audio cable.
To use this cable, simply plug it into the dock connector side of your iPod (on the bottom where you plug in your other iPod data cable). A normal stereo signal will be fed to whatever stereo system you plug into for perfect above CD quality sound.