Often some of the screens / components are the same as major manufacturers, but just as often, the final assembly (screen connectors, micro-switches, etc) are only designed to work at POS (Point Of Sale), not for 10yrs+ as they would with an Audi original.
Main problem is usually the software that controls these things is very buggy and if "updates" are available, my past experience with these things (Mokia aftermarket accessories), they're so laden with viruses, you would have to disable your anti-virus to download and install the updates (not advisable).