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I own an Audi A3 8V year 2014 and I’m having a sound issue for a couple of weeks with my car. Sometimes it plays well (all 4 speakers, although the rear ones sounds a bit low) and on the same day when switched off the car and on again, there is no sound from all speakers. On some days there are no sound at all. My warning (parking sensors beep etc ) when doing parking works fine. The MMI is powered correctly and the display is works perfectly, detects well all radio channels correctly and even the bluetooth connection with my phone is correctly established with access to my phone directory etc. but no sound can be played from my phone, CD, hard disk etc. I have also noticed that the MIB when pulled out is very hot at the bottom. Don’t know if this is normal. I also checked all 3 fuses which are related to the MMI and they are OK. I suspect the built-in amp in the MIB could be the culprit. I don’t have the Bose or B&O model; it’s the Audi model.
The model of the MIB 1 is: 8V0 035 034 A
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