Google Pixel 7
Build number 2025010700
In the past, I have been able to use wired Android Auto on my car while using Proton VPN, but recently that stopped working. Whenever I tried using wired Android Auto, I got the error on my car screen "Android Auto Unavailable. Unable to communicate with Android Auto device. Its Bluetooth may need to be turned OFF/ON, or it may need to be restarted to connect properly." In fact, even if I unplug my phone from my car, I still get this error message automatically even though I am not trying to connect to Android Auto.
Today, I read that some cars need wireless permission for Android Auto even if you are only trying to use it wired, so I turned on the wireless permission. When I connected my phone to my car using a cable again, I got the error on my phone "Android Auto encountered an error Communication error 21 - Being connected to a VPN may prevent Android Auto from starting. If you're using a VPN, turn it off and try reconnecting to Android Auto."
Do I really need to disable my VPN to use wired Android Auto or is there another way?