Your phone in a mount provides integration with your car's steering wheel buttons to allow for control without taking your hands off the wheel? Your mount allows you to leave the screen on your phone off while also using navigation with a screen?

I don't know that I believe that.

Exactly. You shouldn't be touching screens with your hands while you drive. That's illegal where I live. But my dash mounted phone has Siri and Bluetooth so I can be hands-free for commands and I can use the steering wheel controls for media.