Audio connector for a dvd player

  • Hi there!
    I have in the latest days been trying to get a dvdv player to work in my dm7020s, but the problem is:
    I get the dreambox to play a dvd, that long it works fine. But I dont get any sound. So I figured some dvd players have an audio output, that has to be connected into the audio bus on the motherboard.
    I have seen a lot of pins, but I cant find any description for what they are.
    And for the question, is there any pins on this "7020" motherboard that's used for the sound?
    Thanks this far.