New Space Star, sometimes with, sometimes without a navigator, sometimes with, sometimes without a rear view camera

My wife has a Space Star Select+ CVT at the Mitsubishi dealer. From a pre-order of the dealer of several vehicles, is to be delivered next week. The car we drove to the test, according to papers 3 months old and 7000 km on the clock. Also a Select+ CVT. With this was Navi on board, but no return camera. The car in the shop itself is only two days, also a Select+ CVT. With the exception of car color, it looks the same optically. Why with the vehicles Select + since 2022 no more Navi than standard equipment is available, could not be told me. According to the configurator so also not available in the variant. Wherewith the monitor is available. Could the “Extra” navigation be only missing software and and probably GPS building block missing? Can you retrofit such a thing yourself ?