Sometimes the volume control on a Bluetooth device behaves unpredictably. This quick fix in your Android phone's settings is a good troubleshooting step.
If you use Android Auto, you might be interested to know that there's a feature available on some phones that helps keep phone calls minimal while you drive.
Apple CarPlay can sound great, but you have to make sure you're sending it high-quality audio. A few quick checks can boost your audio enjoyment on the road.