A:Answer It will mirror your phone's screen if you connect your phone to the radio's HDMI input. You'll need the appropriate HDMI adapter for your phone. When connecting your phone this way, you'll need to control what's displayed using your phone. The radio only shows the exact same content your phone is showing.
There's also the option of using Apple Carplay Android Auto using a USB connection. There are only a few apps, mostly map and audio type, that are fully supported using these methods, but the advantage is that you can control the apps using the radio's touch screen.