I have one of the earliest versions of the Mediabridge. It has bluetooth. It is one of the selections that you can access from mode button and then use the right/left control on the right side to reach. While different than what you are experiencing, I recently had a problem and contacted Audiovox who now is the source of the Dice Mediabridge. They sent me a file to reload the software that fixed the problem. I communicated to them by email. They were very responsive and helpful. Might want to give it a try. I have no problem with any of the options including the Sirius module. I have DSP and the Mediabridge is located in the front. I connect my iPhone by bluetooth for music and it has been flawless. I also use Google maps from my iPhone and it comes through the radio.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas