YINUO Quad Core 16GB Android 4.4.4 1024600 7 inch Car DVD GPS Stereo for Audi A4 2002 2003 2004 2005 2006 2007 2008 In Dash Navigation Receiver 1. SYSTEM & SCREEN: Runs with QUAD CORE Rockchip 3188 1.6GHz Cortex A9, along with Samsung DDR3 1GB RAM and 16GB flash memory, system fluency is three times faster than Dual core unit; Loaded with Android Kitkat 4.4.4, easy to pickup; Adopts capacitive digital 1024*600 HD screen, multi-touch, 175 viewing angle, day and night readable 2. MULTIMEDIA: Support Mirror Link--iphone Airplay and android phone Easy-connect; 30 stations of analog AM/FM RDS radio; Play music or video via SD card or USB drive; Support Dual Zone function to watch DVD-video on headrest monitor when navigating; Support 1080P video; Loaded with Hitachi pickup and Toshiba amplifier for an advanced car audio quality, support subwoofer & EQ 3. MULTI-FUNCTION AND INTERNET: Support Steeing Wheel Control; Built-in GPS navigation, FREE MAP & 8GB MAP CARD PRESET; Bulit-in Bluetooth for hands-free calling and phone music playing; Support OBD2 real-time diagnosis, DVR, AV-IN; Built-in WiFi and 3G and WiFi hotspot, surfing the internet, downloading android apps, sending email and reading business file(pdf/word) are all available 4. THE VEHICLE GPS NAVI FITS WELL TO Audi A4 2002 2003 2004 2005 2006 2007 2008. 5. Doorstep delivered within 3-7 business days by FREE DHL AIR EXPRESS rather than one month suggested by amazon. Backed by amazon one month return policy; 12 months warranty for quality issues.