I, too, struggled with this as I was getting darned frustrated. I think I finally either called Reace or asked him when I took the trailer up to Chilliwack for something else. At any rate, with my system all I have to do is plug two cables from the television into panel below the counter (see picture). The cable from the "Cable (or Satellite) Input" on the television goes into the white jack on the left and the audio cable Audio In (or maybe Audio Out--can't remember from here) from the television goes into the yellow jack on the right. Then, of course, the television has to be set to the correct input on the screen to "know" that it's a DVD (and not Satellite/Cable to be viewed.
I was making it way too difficult at first, trying to go from my audio system directly to the television. It was already hardwired during the build.