Alfa Romeo GT Audio & Bluetooth Systems Dead

Had a similar issue with my 2012 Alfa Romeo Brera (2.2L). The sound quality degradation started gradually with call recipients complaining they could not hear me clearly. Then the volume control stopped responding, followed by complete microphone failure. After troubleshooting, the problem was traced to a faulty microphone module in the overhead console. The ambient noise suppression system had also failed, causing the audio system to malfunction. The repair involved replacing both the microphone unit and the main control module for the hands-free system. This was a serious issue that required specialized diagnostic equipment. Generic OBD scanners could not properly identify the fault codes from the infotainment system. The repair took two full days as the entire headliner needed removal to access the components. Based on your symptoms, particularly the complete loss of hands-free functionality and speech recognition, its likely the same core issue. Would recommend having it diagnosed by a shop with Alfa-specific diagnostic tools, as attempting DIY repairs on these integrated systems often leads to additional complications. The factory microphone repair includes updating the system firmware, which is essential for proper integration with the newer Bluetooth protocols.

Thanks for sharing your experience with the Brera audio system. I am dealing with an identical wireless connection problem in my GT right now. The symptoms match exactly what you described, first the call quality went bad, then the volume control started acting up, and now the whole system is dead. Did you remember the repair cost for the microphone and control module replacement? Also wondering if any other issues came up with the system since the repair? My mechanic mentioned something about checking the wiring harness too, so trying to understand the full scope of work needed.

Glad I could help identify the issue. After getting my Brera fixed by the mechanic, the wireless connection and speech recognition have been working flawlessly. The sound quality is perfect now and the volume control responds as it should. The total repair cost was 815 Euro, which covered the replacement of both the microphone unit and control module, plus the labor for removing the headliner. They did check the wiring harness during the repair, but fortunately it was in good condition and didnt need replacement. Its been six months since the fix, and I havent experienced any issues with the hands-free system. The Bluetooth pairing is stable and voice recognition works reliably. I would say the repair was worth the investment, considering how essential these features are for daily driving. Make sure your mechanic uses the proper diagnostic equipment for the infotainment system, as this was key to getting everything working correctly. The firmware update they performed as part of the repair really improved the overall system performance.

Today I finally got my GT audio system fixed and wanted to share the outcome. The mechanic confirmed it was indeed the microphone module causing all the Bluetooth issues, just as suggested here. The repair took about 6 hours total. They had to remove the headliner to access the faulty components. While in there, they found some corroded wiring near the microphone unit that was contributing to the voice recognition problems. The volume control issues were related to the same failing module. Total cost came to 780 Euro including parts and labor. They replaced the microphone unit, fixed the wiring, and updated the system firmware. The wireless connection is now perfect, calls are crystal clear and the speech recognition works better than when the car was new. Really appreciate the advice about finding a shop with proper diagnostic tools. The mechanic I used specializes in these systems and their equipment picked up issues that my regular shop missed completely.