I bought this car mp3 (MP3-CD/MMC/SD/USB/radio) player during summer of 2005. It was relatively cheap, and most importantly, it had a SD/MMC card slot.
Yakumo has a German-speaking support forum here:
This car radio was also sold in a near-identical version by Aldi-Sued in Germany under the name “Tevion …???” but without a remote control.
It has the ability to record from radio/line in/CD/… and encode to MP3 in real-time. (Nice for recording from radio).
It appears that there's one bug, namely that the CD drive sometimes stops reacting. When this happens, it wont accept/eject/play CDs. When this happens, pressing the reset button brings it back to life, but of course the radio station memory keys loose their information…
Here are some misc stuff I found out about the unit:
While taking it apart, I took lots of pictures: http://projects.varxec.net/images/yakumo/gal/yakumo_car_mp3_galleryidx.html
(I also put it back together, and it still works )
Where to buy: