I have a pinsound plus installed in my Batman Data East machine. I want to buy the pinsound speakers upgrade kit. It says no permanent modification required. But I also have a powered home theater subwoofer installed by soldering RCA audio cables from inside the machine by the coin door and running them to the subwoofer. If I add the pinsound speakers will the soldered RCA cables still work with the subwoofer? I guess in short im asking can I use the Pinsound speakers upgrade plus my powered subwoofer at the same time? Do you connect the pinsound upgraded apeakers directly from the pinsound board? Sorry im a newb I had the pinball dealer install the pinsound board and subwoofer.