Quick Answer: Why Does Android Auto Require Bluetooth?
Contents Technically, Bluetooth Lacks the Necessary Bandwidth to Offer Both Audio and Video for Android Auto, So What Google Did Was Restrict the Use of...
Technically, Bluetooth lacks the necessary bandwidth to offer both audio and video for Android Auto, so what Google did was restrict the use of Bluetooth for phone calls via the Hands Free Protocol, also known as HFP. So despite most of Android Auto running through the cable, the Bluetooth is used for phone calls.
How do I turn off Bluetooth on Android Auto?
You can disable it, under the AndroidAuto->Settings->Disable-Bluetooth.
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What’s the difference between Bluetooth and Android Auto?
Audio quality creates a difference between the two. The music sent to the head unit contains higher quality audio that requires more bandwidth to work properly. Therefore Bluetooth is required to only send phone call audios which definitely can’t be disabled while running the Android Auto software on the car’s screen.