How to adjust the microphone gain for CarPlay / Android Auto phone calls:
For the factory microphone (OEM mic), 65 usually works best; for the aftermarket microphone, 45 is best. However, it is recommended to adjust the microphone gain and test while making a phone call. Because some OEM mics and stereos may differ, the ultimate gain value may vary.
For the factory microphone (OEM mic), 65 usually works best; for the aftermarket microphone, 45 is best. However, it is recommended to adjust the microphone gain and test while making a phone call. Because some OEM mics and stereos may differ, the ultimate gain value may vary.