I've got a Dudu7, with the supplied external mic connected. I generally use a wired connection with my Google Pixel 8a inside a Skoda Yeit 2015. I used wired as I've found Bluetooth unreliable to connect.
I can voice control Android Auto fine and ask it to dial someone, which is diligently does, but then it reverts to the mic and speak on the phone during the call, rather than sound through the head unit and use of the external microphone.
I've searched the settings but can't see anything suitable, also rebooted both devices. Any thoughts on the problem would be appreciated?