I have asked this before, but I don't think I've gotten a clear answer yet. When wiring subwoofers in series, I have noticed that the diagrams state that subwoofers need to be interconnected, pos of 1 woofer to neg of the other woofer, or something similar. How does that physically happen if you have a dual sealed enclosure? How do you run the wires from one chamber to the other? I am probably not understanding this right. I'll need to do this soon