Sound Quality is Bad Only when CD is Played (Volume is Too Low) (TO 08/2009): Procedure

REPLACE CD AND RECHECK
1. Replace the CD with a known good one and recheck.
  1. Check if the same trouble occurs again.
    OK
    
    Malfunction disappears.
NG → See step 2

OK → END
REPLACE RADIO RECEIVER ASSEMBLY. Refer to REMOVAL