There are hundreds of units of Android Auto (Mobile) Radio available in the market. The screen, the physical layout, screen type, OS and many other aspects vary from brand to brand. The software in these radios is the one that makes the difference. Most of the Chinese made ones have MCU firmware. This is difficult to upgrade as MCU firmware is not flexible and is also not available for the developers to put a patch on it. So as time passes, it would be difficult to upgrade them to the new Android versions. So beware of the makes of these radios update navigation auto radio. The Radio unit will as such have basic functionalities like a home screen, Radio, GPS Navigation, Bluetooth facility for connecting to phone and tuner/volume controls. By pressing the radio button, the radio app is launched with a digital radio dial with pre-sets. There are also band buttons to choose between AM and FM. The installation is very much similar to that of the car radio. It can be installed by anyone who has knowledge over the car wiring.