IF you did the wiring correctly (Brian's wiring diagram), on the MMM no black/brown was cut but this is only true if you directly soldered the black wire from the UBEC input to the MMM and the black wire output of the UBEC to the RX plug. This is a "ground" wire so basically it is the same.
If you are not sure about the wiring you can go over the mod but dont do anything on the wires going to RX. Then connect the UBEC directly on the RX as you would normally do....leave the red and black/brown as this will back feed the MMM Brain
edited:
My response was late
