Boxster S (986) F6-3.2L (2001)
Reduced sound quality in one or more loudspeakers
NOTE: Reduced sound quality may be accompanied by a humming nose
1. Switch on the system and change the fader and balance setting on the radio.
2. Check the fault status.
3. Find out on which channels the problem occurs.
Work Instruction 1 - 2
Work Instruction 3 - 4
Remedying problems with the amplifier