Did you manage to sort out your phone volume setting in the head unit ??.
If you go to the opening screen in the info unit, then by using you finger, place your finger on the top of the info screen and then swipe down.
This will open another easy access menu screen.
On the right hand side of the screen, you will see a slider bar control ( coloured grey and blue ) that will offer a “Phone Volume” control.
Once you have finished adjusting it correctly, then swipe you finger up from the bottom of the screen to return to the main front menu.
I will try and include a image of the screen that you need ?.
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