I have just removed my 6x CDC and it's for sale. Absolutely perfect condition and works flawlessly. The car has 39,580 miles on the clock. Plays MP3 CDs, so even at the highest bitrate, you'd get at least 400 tracks (and that's mostly classical music, so many are over 7-10 minutes long). Compatible with: SLK R171 CLS C219 M W164 E W211 GL X164 R W251 B W245 A W169 Part number: A2118703889 Model: MH3511 - CDC Indash MP3 This is an Alpine-made unit - s/n AL351150903895 Removed carefully, all connectors are in perfect condition. Mounting T20 screws present. Any questions - please let me know. eBay prices seem to range between £80-£90 for a really horrible looking ones (some with clear liquid damage), to almost £200 (incl. p&p) for a good condition ones. £100 incl. insured courier delivery.