Sounds of phone, radar, lighting are muted. But music sounds hav not a problem. I can not found menu of mute

2002 BMW 735
75,000 MILES
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PARABAS
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The music sistem is muted
Oct 9, 2012 at 5:59 PM
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KHLOW2008
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Does turning the volume higher makes any difference?
Are all speakers producing sounds?
Oct 9, 2012 at 7:30 PM