I have a Garmin 496, Garmin GNC300XL and Digitrak autopilot. I want to be able to select the nav source for the autopilot between the two nav units. I see where I need to set the baud rate for the 496 to 4800 and the 300XL at 9600. Will this cause a problem when switching between two two nav sources? If so what can I do to solve the issue. Surely this has come up before with these popular nav units