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Hi folks! I have different issue. 520d 10/2016, radio is harman kardon, i have seen it few days ago when i was polishing my idrive screen. And after that, i realized that central dashboard speaker with tweeter is not working. Tested od diagnoatics,, no errors on hifi or any other module.... speaker does not have any cables except two wires in and from speaker two wires out with some condensator i supose, under thermal cable to tweeter. Is there anything i can see or test, or change setting from hifi to harman kardon in coding? Is it available only with harman kardon setting? Can anyone guide me, as i am not into music and speaker systems in car audio....
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