typically port 1 is usually throttle then 2 is right cycic servo 3 is elevator 4 is the 3 wire from gyro 5 is the single wire from gyro 6 is the left cyclic servo  but you can use a servo to plug into each and move your stick and figure out which 1 is which but make sure your motor wires are unplugged and you have  rx powered up and bound to tx