I installed the head unit for the Honda Accord 2013. However, I cannot use the OEM microphone to make calls. Instead, I have to use the microphone in the head unit and no one can hear me when making phone calls. How can I use the OEM mic and bypass the head unit mic?
@richard sunwoo
Hello.
Regret to tell you about it doesn't support to use the OEM mic.
About the phone calls issue, please try to connect the external mic to see how it goes.

In order to help you better, please provide the following information:
1.
Order Number & Purchase Date.
2.
Picture: Settings > About Machine > Build Number; MCU version.
Thanks in advance.
