Pioneer 6 CD changer took a poop. Didn't fix for a year and a half. Finally bought a used one from a junk yard. Easy replacement, but costly. The cheap white plastic gears seem to fall out of their respective spots inside the case. For the most part, this is a catastrophic failure that requires replacement. Don't take it to the dealership or anyone else, it'll cost too much. Simply obtain one from the junk yard and replace it your self. Very easy fix.