Mazda CX-30 2020 Owner's Manual page 426

Interior Features
Mazda Connect
No. Item
2
3
5-18
Commander knob (select):
Depress the commander knob to select the desired on-screen function
you want to use
Entertainment button:
The audio source screen last used is displayed.
(During Apple CarPlay or Android Auto™ music playback)
Displays the Apple CarPlay or Android Auto™ playback screen.
Explanation