Compatibility: This head unit fits for GMC Sierra Chevrolet Silverado 1500 2500HD 3500HD 2019 2020 2021 2022 2023 2024 Factory OEM 7 Inch and 8 Inch Screen car radio head unit. To guarantee you get the right car radio, please check the third picture. (Please NOTE that the OEM 8-inch and 7-inch head unit have different wiring and internal software configurations, so please contact technical support before installation. Not compatible with OEM 4-inch screens.) Powerful CPU: 2025 Latest Upgrades Android 13 OS, Pure Snapdragon 665 AIE Eight Core processor chip. Supports 4G SIM card; Wireless Carplay and Android Auto; 8GB RAM + 128GB ROM, 9 equalizers for sound 4*45W EQ audio output, AM / FM with RDS NXP6686 radio chip. Powerful Car Head Unit: 15.6 inch 1440*1920P screen resolution capacitive Multi-Touch screen. Support FHD 1080P video Compatible format; Bluetooth 5.0 hands-free phone call; Synchronize contact list; Built-in WiFi function; Built-in Google Play Store; Built-in GPS Offline Map; Support Online Map; 4*45W Audio Output; 7850 amplifier; 9 Equalizers Compatible for Sound; NXP6686 Radio Chip; AM / FM with RDS; Support AUX-IN Audio; USB port; Support Steering Wheel Control and more. Pure Plug and Play: No cutting/joint.Fully compatible with OEM IN TOUCH. No need to connect steering wheel control wires or debug AUX. Support highly customization, APP list comes in main menu. OSD Language: English / Russian / French / German / Spanish / Italian / Arabic / Portuguese / Turkish / Thai / Polish / Hebrew etc. Notice: The wrong car model and car year is incompatible. In order to avoid problems during installation or use, please send a picture of your car's dashboard after you place order, let us know the model, manufacturing year, OEM screen size, and shape of the center console of your vehicles. After completing all the wiring connections for the 7-inch and 8-inch models, you need to connect to Bluetooth; otherwise, your unit will have no sound. AuCar 2024 Latest Android 13 Car Radio Head Unit for GMC Sierra Chevrolet Silverado 2019-2024, 15.6 Inch Car Multimedia Player GPS Navigation, Compatible with OEM 7 & 8 Inch Screen 8GB RAM+128GB ROM