Hi,
I could not get the Parrot to talk to the steering wheel controls or to the COMAND. There is nothing available commercially to connect the Parrot to the fibreoptic MOST system in the car.
I think you can connect to the car speakers if you wish. I didn't want to do this b/cos I felt there was no point as I couldn't connect to the COMAND.
The mic is discreetly hidden by the rear view mirror on the drivers side, while the speaker is in the dash behind the middle vents. The display is just to the left of the steering wheel column. I have attached some pics.
The system has been great. It connects reliably, voice dials and auto-answers. It even works with my wife's Windows Mobile phone when she is driving without any changes. If we are both in the car. We can select which phone connects, depending on who is driving. For an outlay of £250, I can't really complain!
Hope this helps.