I have a M class with the Bose Navigation radio in it but the CD now doesnt work it says disc 63 but doesnt play anymore is it the Bose or just the CD changer the changer actually looks like a sony?



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The speakers in your car are the only thing that are Bose. The CD Changer is actually an alpine unit. The Navigation command unit is from Mercedes Benz, not Bose, or alpine. If you have a CD in the changer and you are getting an error, the problem is with the changer, not the unit. If you have a CD in the unit and you are getting an error the problem is in the unit.