I installed the MB Changer in the trunk of my 2000 C230, but now when I push the CD button on the head unit, it displays "No CD Changer." Is there programming that must be done? If so, is there a way that I can do it, or do i have to be at the mercy of the dealer?

That happened to me when I installed my changer. Asked my dealer to check it and/or reprogram and he said that the unit was defective. Had it swapped by the guy I bought it from and it has functioned perfectly since then.

Ask your dealer to check it.