1

Cancel the "auto start" of automatically played music. If you use XX Guardian or the like, you can cancel it in the permission settings. If not, go to Settings → Application Management → Find the playback software and uncheck the "Autorun" checkbox.

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2

Completing this step is not enough, you still need to enter the playback software settings. The main thing is to set the "headphone wire control" function and don't let it play automatically when the headphones are plugged in (for mobile phones, connecting to car Bluetooth is equivalent to plugging in headphones). Taking Tiantian Dongting as an example, enter the menu "Settings" → Headphone wire control → Insert headphones to play and cancel.

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3

I guess this will do the trick. Give it a try! If that still doesn't work, here's the best trick:

After connecting to Bluetooth, press and hold the Bluetooth icon on your phone to display the Bluetooth connection interface. Click the settings icon for the Bluetooth connection on the interface and cancel the "Media Audio" option.

However, this will result in the car being unable to play music from your phone all the time, which may not be the effect you want. Therefore, if the previous operation is effective, there is no need to do this step.

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END

Notes

Many people think that automatic playback after connecting to Bluetooth is a problem with the car, or It's a problem with the mobile phone. In fact, you are wrong!

The settings in the third step can be remembered, which means that after disconnection, the next connection will still not play music and only connect calls, unless it is set again.

This experience has only been tried on Android phones, and there is no guarantee that it will be effective on iPhone!