Logitech Z-5500 2 speaker sets, 1 control pod

I made a splitter that is wired in parallel. I was also extremely worried about a voltage problem also since the sub powers the control pod.
So I spent 3 hours soldering up this splitter and I hooked it up and to my surprise the control pod didn't blow up. I have been using the splitter for over 6 months now even playing at extremely high volumes (boost 11) and have had no issues at all. I'm guessing the control pod has some type of regulator to keep the voltage constant.

Here is a video I made of it.
http://www.youtube.com/watch?v=7lZoRp6GdLk

I used 2 15 pin female d-sub connectors and 1 15 pin male d-sub along with a lot of wire and a lot of soldering. I believe I tinned/soldered 135 contacts and i used about 60 feet of 22 gauge wire.

Now here is where the weird part comes in. I believe the control pod is sort of paired up with the sub somehow, so a new control pod will not work properly with an old sub due to the changes that were made with the system. I do not know exactly what they changed I just know there is a problem. The system works fine (comes out of both sets) in analog input such as stereo 1, 2, or 3 but when I switch to a digital input such as PLII movie or music then only the new system plays. For me this is perfect because I used the PLII movie for movies and stereo x 2 for music and I wanted sound coming from everywhere for music but not for movies since that isn't what surround sound is.

Since I cant seem to edit my post I am going to have to double post.

Edit: I actually came up with the solution a few days after I posted, after testing it I found that whilst the double setup did give more "Punch" the fidelity wasnt as good no matter what adjusting I did it just didnt feel right so I am using 1 set.

Thanks a lot for replying to such an old post though.