Upgrade BMW E53 autoradio with USB and SD card, Analog TV Tuner, Dual Zone function, HD TFT LCD, DVD/DVD-R/DVD±RW/HDCD/CD-R/CD±RW/MP3/MP4/Picture CD/VCD/WMA, 3G/Wi-Fi Internet with big keyboard, mechanical anti-vibration and electronic shock protection and so on. It's on discount now: http://www.seicane.com/car-autoradio-cd-player-gps-navigation-system-for-2000-2006-bmw-e53-with-bluetooth-pop-3d-map-rearview-support-3g-wifi-dvd-function-c082