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The app itself doesn't need Bluetooth.

From what I understood, Bluetooth is necessary only to have the app automatically launch when connecting to whatever Bluetooth device/infosystem unit you have in your car.

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Sure, but it would be nice to automatically start when I plug my phone to my car.

Do you have an idea how to "sense" the connection ? The app Trigger might help you writing a scenario to launch the Android Auto app on a certain trigger.

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