Most of you already knew this, but I thought I would pass this along. My CD player in my C-4 is old school. Works ok. But if you hit a bump sometimes it skips. So I went down to Walmart and bought a Zen MP3 player (2 gig) for $70.00 and used the cassette player adapter. I then bought a 4 gig card for the MP3 player. Plays like a charm, no skips and plus I don't have 30 to 40 CDs in the car. I now have over 2000 songs on my mp3 player and gave away all my CDs as well.