I actually read all the instructions and found that its the outer two, good thing I didn't try the middle, says bad things happen.
So, This worked fine on my little 60" electric. I installed it in a jet with a futaba 14 channel rx. The first two channels work, none of the others do. Nor, does the aux. Any ideas? I'm positive I have polarity correct, I tried several combinations, only the first two ports work, the other three and the aux do not.