I'm going to bump this one.
I just got a 2002 330Ci myself with the NAV system. I'm looking for CD changers other than the $1000 BMW installation. Anyone have any suggestions on a place to get them that is compatible. Seems like from my reading that a lot of the stereo configs changed with the 2002 model. Not to mention that I have the NAV system which might throw things off a bit.
Thanks.