My 07 S550 CD player does not list any information about the Artist or song when it is playing. Yet, my MP3 player does. I took my car to the dealer to correct the problem and I was told that it was working properly. I find it hard to believe that the CD player in a $104,000 Car cannot display the CD title, Artist, or song. Please advise. Thanks.

J D
86 300 SEL
07 S550