Phone sound weak compared with music volume
I have a C220 2014 T modell. with Audio 20 standard (Not HK). it have BT in car phone system (microphone and car speakers).
I wondering why the phone speaker volume is quite low, (even turned on maximun) compared with the volume from music, radio, CD etc.
I can't find anything that and why limits the Max. volume for Phone usage in Audio 20.
I hope other have experienced that issue. and how to fix it.




Do you mean "your volume for bluetooth is set to loud". Are this setting inside the setup menu in Audio20 radio? Or on the phone itself?
Another setting is automatic volume adjustment, that might also lower your volume depending on the song.
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