Hi Rontgen,Absolutely incorrect. It is not a screen mirror in any way shape or form. It’s Apple CarPlay - exactly like every OE integration I’ve used in rental cars. CarPlay actually runs on your phone, not the head unit. The USB dongle simply serves as a conduit for video display and touchscreen input.
The dongle is not an Apple-licensed product in the same way that my USB-to-Lightning cable isn’t an Apple-licensed product. Yet, it still works.
So does the headunit see the dongle as an A/V input? What lets the headunit know to let the dongle take over?
If it functions as you want, then all good, just remember it's not CarPlay and what that was designed for/as.
You are absolutely correct, genuine Car Play means if you have a driver without a phone then the system doesn't work. The reasoning of course behind this is that in the West, smartphone usage is massive and it's now only a relative few who don't have a phone. The manufacturers have wisely adopted both Apple (carplay) and Android (auto) on the same hardware! The high quality brands still do make head units with official CarPlay and theres always improvements and updates so it's getting better since the initial launch of CarPlay. Will be interesting to see how things move ahead over time, both with CarPlay and Android Auto.