Hi Mike,
Don't have any problem with the radio, surprised that you had to send the suspension bits to Le France, why not to Germany? OK, i've just got an 840, not an 850 but it still sounds pretty drastic to sort out your problem. Anyway, how did this manifest itself? No suspension travel, or too much? How can you tell with that set up that it's a specific problem without taking it to a dealer? Hope you get it sorted and get to enjoy your 8 without hassles. Keep cruising
Barry