✓DSP digital processing audio streaming:Built in DSP sound effect processing chip, It supports 6 sound settings Smart Bass, Balance, Emperor, 30-EQ, Loudness, Filter, equipped with TDA7388 power amplifier chip, customize the best sound in different positions according to your preferences to meet your personalized needs,and bring you a pleasant driving journey. ✓Powerful and rich functions:This E46 screen has Carplay, Android auto, GPS navigation, FM / AM radio, Bluetooth, Bluetooth music, USB, multi format music player, 1080p video player,4G LTE ,WiFi, APP download, backup camera, audio output, AUX audio and video input, external microphone,SWC steering wheel control. ✓Powerful hardware configuration:The latest Android 11 operating system, powerful Octa Core 2.0GHz processor , 2GB RAM, 32GB ROM, 9-inch Supper Clear IPS Screen 1280*720, give you wonderful visual experience. ✓Built in Carplay and Android Auto:This car stereo compatible with Apple Wireless Carplay and android auto, allowing superior voice assist control and making it easier to access your phone functions including music, GPS navigation, calls, notification, messages and much more , while keeping your hands free for totally safe driving maneuvers!. ✓Applicable models:Suitable for BMW E46 3 Series 1999-2004 (1999 BMW M3,328is,328i,323ti,323is,323i,318ti 318is,318i / 2000 328i 328Ci 323ti,323i,323Ci / 2001 M3,330xi,330i,330Ci,325xi,325i,325Ci,323i,320i / 2002-2004 M3,330xi,330i,330Ci,325xi,325i,325Ci,320i). If your car has Original external amplifier system (such as Bos e, JB L HarmanKardon etc.), you need to purchase another amplifier extension cord. If you have any questions please contact us, we will reply within 24 hours.