Hi HM,
MMI unit ordered, awaiting delivery. I have found a local (Herts) installer, who seem to know what they are doing. I will keep this thread updated.
I am amazed that no-one seems to have done this yet in the UK. My current work around, of use car's sat nav, and blue-tooth music to the car, using the phone for track listing, is primitive at best, and I cannot use my speed camera bot at the same time.
Paul