Hello. I've tried many ways to get the sam you ask, and the best for me was:
1.- Buy a cheap Ford Radio 5000 RDS cassette player. Be sure to get the steering remote control.
2.- Buy a mp3 cassette player. This is a mp3 player with the exact shape of and old cassette, and will fit in the 5000 cassette player. It will even recognize when yo press FF and REW buttons to skip songs. You can find them on ebay.
Tokafondo
January 2009