Assuming a pair of 4500s as primary displays, if I add a third MFD display does it have to be a 4500 MFD? Would a 3400 MFD work? Would there be able functions not be able to be displayed on the 3400 MFD? The reason I was looking at the 3400 MFD was it's size and looking to put something on the right side on the Aerosport panel.