Will satellite navigation transport with the display unit?

Hey guys, still the original owner of a 2015 Prius IV here because Toyota won't offer a sunroof, heads up display, lifetime free satellite navigation, or my modded signal mirrors on a new one....

I have some basic questions about Gen 3 LCD displays and the satellite navigation feature in particular. I think sat-nav was only available for trim packages III and IV because those may have been the only two trim packages that offered an LCD display. Is the software that displays on the LCD unit also contained within the unit or does it draw it from storage in another component such as the ECU? If the software is stored within the unit was the sat-nav feature of the technology package programmed into it at the factory or was the programming something that could be added or removed by Toyota either by satellite or a local service technician? Would it be possible for someone to swap a Gen 3 LCD unit with the sat-nav feature into another Gen 3 Prius that originally didn't come with it successfully as simply as plug and play or with some tweaking? Could it be made to work in a vehicle other than a Prius (assuming the wiring was worked out) and any necessary auxiliary components were transferred with it? For instance, stowed away in the glove box in a classic restomod?