My European -92 500E has the sound system option which I believe is part of the standard equipment on your US versions. The system has a Becker Silverstone 0980 CD changer in the trunk. On my car the CD changer doesn't work. I've searched for companies that repair these units. No luck so far, it appears even Becker of North America has stopped repairing these units. An option is to install a "new" CD changer. Do any of you guys know if there's a substitute for the Becker 0980 that is compatible with the rest of the system?