Hitec wires up the same as Futaba, normally channel 6 is other Aileron servo firstly, next some radio dont support dual elevator servo so you have to set up a PMIX to do it, bugger is sometime the trim does not work between the two channels, found out on my JR8103 using a 4 channel RX with dual aileron servos, long story[>:]
Give it a bash with the servo removed for ch5 into ch6, then try PMIX for ch 2 to ch 5, alternatively Y lead