I discovered this while playing with VoiceCommands.apk.
I noticed my D2 is paired with my Jawbone Icon in "media profile", but won't work in "phone profile". When I go back to Fission, both boxes are available and working. You get to these profiles by holding on the bluetooth device (on the bluetooth screen), then selecting "Options..."
Fission also has an "Enhanced Stereo" option on the bluetooth screen.