It will replace your OEM screen and add the following features to your car: Apple CarPlay (wired and wireless) Android Auto (wired) Play video or music from USB The head unit Built-in microphone and supports Siri and Google Assistant either via voice keyword ('Hey Siri' /'Okay Google') or by long-pressing the steering wheel voice button. Is it plug and play? Yes it is plug and play. Does it fit my E83? Screen size is 10.25 inches and yes it will perfectly fit E83 that doesn't have original display.High quality bluetooth voice call. Support original car rear camera and parking sensor.