I installed the MB Audio 10 CD in my C-Coupe
 

The Audio 10 or Becker be6021 is the AM/FM/CD radio that is available in most countries except the U.S. It works with the CD changer and has RDS (displays radio station name and song name for some stations). It sounds soooo much better than the cassette radio. I don't have Bose but the audio 10 sounds better than the Bose option and certainly has way more bass.