ANC has really nothing to do with the speakers. ANC is connected to those three mics in the ceiling.
There maybe 4 wires running to one speaker, or really one door. I cannot say for sure on yours since you have a different system, but on mine where I had four wires, the front doors I believe actually did have four wires, two for the woofer and two more for the tweeter, the back doors were a little different and maybe how your fronts are where there is four wires connected to the woofer, but two of them actually go from there to the tweeters and there is no separate (tweeter) wires from the head unit or amp. Clear as mud?