Hi All,
The problem with the changer is common and repairable. If you would like to have it repaired just visit our site for the repair form. The fix so far seems to be permanent once done. We warranty for one year and still have had no changers come back even several years later. However, just like all electronics, the more you use the more the wear on all mechanical and electrical parts. Let me know.
Cleeve Morrison
La Jolla Audio Repair
www.mercedesradiorepair.net