Important If you have any questions about the car stereo installation, you can follow the below steps to reach us. Step 1: Click "Speedroad"Step 2: Click "Ask question"Step 3: Please send us pictures or videos of the technical or installation questions you metThen we will get back to you soon. We have to admit that the installation of all vehicle wires is complex and difficult. Whether it is a vehicle repair shop or a personal installation, it takes a lot of time to study how to connect the wires. Therefore, unprofessional and wrong wiring methods in the installation process can easily lead to problems such as no work, no sound, CarPlay disconnection, etc. In order to provide better service, we provide professional information consultation and after-installation service guidance, including one-to-one engineer service for each customer. With our professional guidance, you can avoid 99% of the problems. Please do not return directly before asking for help. 10.25 inch IPS Touch Screen Supports Wireless CarPlay Wireless Andriod Auto for BMW F30 F31 F32 F33 F34 F36 F80 F82 with NBT System . This unit is compatible with BMW 3&BMW 4 Series(2013-2016) with NBT system. Vehicle Compatibility: • For BMW 3 Series F30/F31/F34(2013-2016)• For BMW 4 Series F32/F33/F36(2013-2016)• For BMW M4 F82/F83(2014-2019)• For BMW M3 F80(2014-2019) Compatible System: This unit is for above BMW vehicles with NBT System only. Warm Tips: This unit is Linux Operating system, not an Android system. It must be connected to your phone (wired or wireless) to use CarPlay and Android auto. Production Features: • Specially Designed for BMW Vehicles • Linux Operating System • 10.25" Grade-A Glass to Galss Touch Screen, QLED Screen • 1280*480 High Resolution • Supports Full HD 1080P Video 60fps • Built-in Wireless CarPlay and Wired Android Auto • Dual Themes (Carplay and BMW Style UI) • Latest Bluetooth 4.0 - Hands Free Call and Music • Built-in USB • Amplifier System Retained; • Original Car Information Display Wireless Apple Carplay&Android Auto Compatible with both Android Auto and Apple CarPlay either through a wireless connection or a wired USB connection. You can get directions, make calls, send and receive messages, watch videos and enjoy your favorite music. All on your car's built-in display. The original system and linux system can be switched freely. Support the Original Car Steering Wheel Control Retain the functions of the original car CD system, and at the same time increase the functions of the Linux system, which greatly improves your experience; Retain and compatible original radio features such as iDrive Knob control, Bluetooth , Radio, OEM rear camera , Radar, steering wheel control. The speed, fuel level, oil pressure and safety warning are now on the display screen.