Built-in 4G LTE : Globally Compatible 4G LTE Modem, Connect with No Boundaries. For BMW X5 E53 (1999-2006). Built-in Wireless & Wired Android Auto - Bluetooth & USB Cable Connection. Supports DAB+ Digital Radio Tuner(USBDAB01 ,USBDAB02 ,USBDAB04 ,USBDAB05T optional).
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