Google wants to HELP you
What exactly are you trying to do on the voice command that you don't want to do with Google voice? ...
How about tune the FM radio to a new station?
When using Android Auto, tapping the right-hand screen button & selecting "Return to Subaru", returns to the default operation of the head unit. However, then pressing the voice button on the steering wheel, immediately reactivates Android Auto, which enters the Google Voice mode.
Dumb. I blame this on Google. Once you select "Return to Subaru", it should take a screen press on the Android Auto app screen button, to start up again.
Instead, it's more of this "let me help you" nonsense.:frown2:
Another example of Google not really believing in diversity. :grin2: