Is there a manual connect/disconnect option other than powering off the device?
Sometimes the connection does not automatically connect.
Could this be an option in the app?
Secondly. Is there a way to disable wired android auto? When connected to charg both options are displayed in my headunit and I am not sure if this is causing any issues. The phone is already set to "charging only", but that does not seem to work.
Not that I know of, but an easy workaround would be the opposite of the previous posts on "get a good data cable" - i.e. get a charging-only cable. That way you get power but no connectivity through the cable effectively disabling wired AA.