Hi Otto33
All you have mentioned ( I care when I receive a call to be able to answer it and rhen hang up Also lower the volume and swap through stations.)
I can still do with this unit granted when I receive a call or hang up I now have to use head unit touch screen instead of steering wheel controls, But for when I want to make a call I use iPhone voice activation, but the for the rest volume up/down, swap though stations, swap input source i.e. iPod, CD, D.A.B. Phone, Car Play etc I can still do with steering wheel controls
hope this helps
Dave