You can turn on the music on the Mushroom Smart Driving Machine and enter the settings to change the default music settings to the default music player. First of all, do not turn off the sound system before turning off the engine. Then the sound system will automatically start playing music the next time it is started. If you are using Bluetooth music, you need to make a manual connection when connecting for the first time. After that, you need to make a manual connection every time. All vehicles will automatically search for your phone’s Bluetooth signal and connect automatically.