[Nohalonga]

Help! I’m getting a high-pitched noise when using the Bluetooth to make phone calls in my new-to-me ‘12 Si. It’s totally stock. Any ideas on how to fix this. I can’t hear the high-pitched squeal but the person I’m talking to does. It does it with both my and my son’s iPhones. Any help appreciated.
Thanks

There is a YouTube video by Tim Wong Honda CRV microphone buzz that shows a simple cleaning fix that may work vs around $300 microphone replacement