AliExpress android Autoradio Navi. Did anyone buy???

H y people On AliExpress there are 9″ radios that can be installed in the car instead of the old without display. They often have 4gn RAM and cost around 100€. On classified ads and also online you find the same products however around 350€. It would be for a Hyundai i10. The parts have navi GPS rear view camera in addition etc. How are the parts qualitative? Can you buy the stuff? Or rather one from Germany which the seller himself has from AliExpress and sells around twice? Thanks e for your esteemed opinion!