Sound quality is on par with a cd, but you really have to jack up the Ipod volume, since it doesn't give the strength of output signal that the cd/fm do.

I've mostly been using mp3 cds.

Advantages...

You can have 6 cds each holding 700mb of music = 4.2 gigs aggregate
The Id3 Tag data displays on the LCD, showing Artist, Album or Track name.



p.s. with everyone talking about an Ipod holder, I'm curious, why not use the built in one @ the center console? You should have one very strange looking 'cradle' (for lack of a better term) on either side of your center console. The one on the passenger side has a 'knockout' so you can run your power/mini jack cords through the right side wall of the console and your Ipod will slide nicely into the 'cradle'. The owner's manual has the directions to remove the knockout to run your cords through, but essentially there's a piece inside the console on the right side. You remove that piece by pulling inwards, and then you can push the knockout towards the glovebox. I think it's still a good idea to have a skin on to avoid scratches on the pod.