Wireless and Wired Carplay for BMW F15 NBT Built-in wired and Wireless Carplay Wireless android auto for BMW F15 NBT Built-in Wired and Wireless android auto Function Support Mirror link function for BMW F15 NBT Built-in Wired and Wireless Mirror Link Function Solutions to Sound Distortion 1. When you encounter sound distortion, please connect ground A and ground B. 2. Linux screen does not need to install 4G and GPS antenna. How are we different? SIM and SD Card Slots on Top There are SIM and SD card slots at the top of the product, and you can insert and remove cards after installation. And the use of mobile phone SIM card tray design, strong versatility. Black Background and Piano Lacquer Crafts Using the close-fitting process, there is 0 distance between the display screen and the touchpad. The background is darker when the screen is off; the colors are more realistic when the screen is on! The whole face frame is all around the piano paint process, the use of integrated design, the firmness of the product is better! 1MM Frame The frame is only 1MM, which increases the viewing area of the display. The product is more refined! Get CarPlay and Android Auto sound with OEM Bluetooth If your car has the OEM Bluetooth, Please use the original Bluetooth to make calls when using CarPlay and Android Auto. No echo and high quality sound. NOTE: This connection can only be used to get music sound when your vehicle has Bluetooth audio capability. How to get sound using raw bluetooth, search on YouTube: gKqeUAbMyCs Set the OEM Resolution Please select the correct resolution for the OEM display within the settings, otherwise the OEM Car INFO may not display properly. Setup>Car Settings> Original Car's Screen Resolution> Select the item Support the OEM or after-market Camera Please select the correct camera option within Settings, Select Original Camera if it is a factory camera. Select Aftermarket Camera, if you are installing an aftermarket camera. Need use the USB IN1 Connect the Wired Function Be sure to use USB IN 1 to connect the wired CarPlay Android auto and Mirror link function. Move the original host fiber optic cable to the Linux harness If your OEM radio has a fiber optic cable above the power harness, Pls move it to the Linux harness. Otherwise you can't get the car information and the Linux sound. And it will be accompanied by a heartbeat wheezing sound. This one only for BMW F15 NBT System This product is only suitable for BMW NBT system. There is a 6PIN LVDS at the back of the OEM screen. It does not support CIC 4PIN and EVO system. If you buy the wrong system, you will not be able to install it.