No - the touchscreen is just a membrane overlay on the original Maserati screen. There's no need for a similar menu but displayed on the aftermarket unit - the Maserati screens are displayed as original menus on the original screen.
Here's how it's put together - a aftermarket touchscreen monitor has the touchscreen membrane peeled away, and stuck onto the Maserati screen. The dismembered monitor still exists - it sits inside the dashboard on top of the Infotainment, under the vents, stuck to the Infotainment unit. It's needed to power up the touchscreen overlay. The feedback from that membrane goes to the Kenwood unit. The video output from the Kenwood goes to the Maserati TV module, and there are some other bits and pieces - amplifiers and other electronic nonsense.
So - select 'TV' and the Kenwood unit is displayed and plays on the screen and through the speakers. All its functions (radio/MP3/DVD/Sat Nav although I don't have a Sat Nav plugged into it) become available through the touchscreen.
Select Radio and the Maserati radio is displayed and works as per a standard car.
Select CD and the CD player/changer are displayed and works as per a standard car (except it doesn't now, as I've installed a Loudlink)
Select Nav and the Maserati 'if you don't already know where you are going you are stuffed' excuse for a Sat Nav appears.
Select Trip/Info/Setup (have I missed any) and the standard screens appear to configure the car, look at the laughable fuel consumption etc.
Happy to show you John - it was probably state of the art when it was installed, but it's pretty clunky now compared to an Android solution. If I was to install one now, I'd want a heck of a lot more for the £4k or so it cost the chap who paid for it. A £60 Android tablet will do most of it...
