2000 Neon, looking for replacement CD/Cassette player

I have a 2000 Neon with a cassette player. I'd like to put a duo CD/Cassette player in it. Does anyone have any idea where I can get one without resorting to going to a Dodge dealer and paying up the nose? I know they make a 1 disc, 4 disc and 6 disc system. I'd either like the 1 or 4 disc system. Let me know via post or via email at [email protected]. Thanks!