Wiring problem - I'm confused...

Oh ok, ty! :)

Now I still need a answer on the thing I wrote above:


Hmm, I already got a Y cable for those 2 servo's. But I haven't got one for that brake-esc thingy. So I prefer the use of CH3, but I think it isn't possible because I've got a cheap 2.4GHz system. (Acoms Hayabusa) Does anybody know how this is called? (I can't find anything in the manual)
I also got a JR XS3 transmitter, that one is 75MHz but it got far more possibilities. Does somebody know if it's possible with the XS3? (And how?)