Pioneer's website states that the AVH-3300NEX with Apple CarPlay can be retrofitted into a model year 2018 Stelvio. Has anyone on this forum tried that with a 2017 build, early MY 2018 Stelvio and, if so, how did it work out?
I'm pretty sure this will not fit without major surgery. This is a single Din unit. These work best in older models that still followed the DIN standards. Now if you had an 87 AR Milano, you would be in business.
Metra makes a kit that will allow a single DIN unit to go in the spot the screen is in.
So the unit will "work", however, you really dont want to lose oil level check functionality.
Would love to find out if the OP has talked to Crutchfield or other installer/specialist to find out if the factory unit can be switched out for an aftermarket unit and keep functionality/not throw any lights.
..especially since there are other aftermarket units that are 8-9in fixed screens that can adapt to the space while looking more factory....