Join Date: Jun 2002
Location: Waccabuc, NY, USA
I can help with one of your points, XM over bluetooth. I have the Camos BTS200 and Zumo 550 and use a WiRevo D1000V BT Dongle to get BT stereo audio from the Zumo, It works for MP3 and XM audio. You plug the dongle into the output port on the bike mount for the Zumo. The procedure requires pairing the Zumo to your headset , switching BT audio to phone only, turning the Zumo off, and then pairing the dongle to the headset for stereo audio (MP3 and XM, and GPS). It works, and the improvement in sound quality with stereo is incredible. You can then pair your BT phone to the Zumo as a phone and it will be relayed to your headset in mono audio. Search on Benchmarkhelmets.com on google for more details.
Regarding the use of Zumo with two headsets in intercom mode, I am just now starting to work on that and will report progress and procedures.
2008 K1200GT, Dark Graphite (Oh my, so fast!)
2005 LT Ocean Blue (Sold and comfort will be missed, but not the weight)