Description: The docking station securely attached the DVD player to the headliner and is equipped with an infrared audio transmitter- reading lights- and AV inputs to connect external devices such as a game system. Ultasonic module. 535xi. Wagon. With panoramic roof. Ultra Sonic Module-For vehicles equipped with an alarm system - This system features a portable DVD player with a 10.2- TFT screen that can be docked into the headliner of your vehicle or removed for use on the go. 530xi.