If I buy the chigee 6 and the cameras the BMW mount for my GS1300 Adventure I also need to buy some kind of bus connector so I can control it with the control wheel. It already seems very expensive, and then I'm reading that you may need that as well. I looked at a competitor one that had all that included for half the price of this, but I do believe that perhaps this is the best device I don't want to order things I don't need.