Mamba external bec question...

[DwightSchrute]

Hi, i'm new to the forum.

I bought a mamba max esc and castle creations bec so i could run a 4s. Now, it's all wired together and i'm not sure where to plug it all up...i have the motor all set, but i now have an extra connector that has to go somewhere.

on the castle creations site, it says the esc goes into ch1 and the bec ch 2...well, where does the servo go??

can i just use a y harness for the bec and esc to go into ch 2?

or should i use my 3ch e-maxx receiver to run it that way?

any help is greatly appreciated.