Over the last three years I've had a lot of folks ask me questions about using GrapheneOS. Let's answer them!

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[–] 3 points 8 months ago

IIRC AA leverages Bluetooth to avoid audio conflicts and to further verify you're connected to the correct vehicle. Some setups use it to know when to power up/power down the vehicle's AA hardware. (At least, I have a dongle that does this, because the car is stupid and allows power to be drawn over its USB port when everything else is off.)

It's optional and not really needed.

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