I'm sure this has been asked and answered, but a Google search didn't find any new or helpful information.

I just bought a 2012 R1200GSA, and the BMW incentive for June, July and August is a free Nav. IV. I don't know a whole lot about it, but from what I have been told and read it does support stereo Bluetooth. I have a Valentine One that I would love to connect to my helmet via Bluetooth along with the Nav. IV, and I'd like to also connect my iPhone. I have a J&M Bluetooth headset installed in my helmet. Here is a drawing of what I am envisioning.

Does anyone have any idea how I can do this?