GA, read your radios instructions and see what they say or go to the Futaba site Ken posted. I think, here is one of those short term problems I have, I think I have one of the 6EX radios out in the shop, someone gave me one?? No instructions so if I want to use it I will have to go to the Futaba site too. I think, here comes that problem again, that even my old 7ch Hitech needed A Y harness for two elevator servos?? I think, there was A p-mix for them but it had something to do with the trim or sub trim?? That radio I gave to A friend so I may have to look at the instructions to see how I used to do it?? That dang thinking thing.[>:] If you look it up post back here and tell us how it is done.