hello i have the onkyo tr sx606, i need to get it so when im listening to a stereo source such as my cable box or a cd it out puts it to all four speakers, i currently have two front and two back (i don`t have full 5.1 has i need save up so i don`t butcher my other speakers sound) i belive im suppose to use Dolby Pro Logic II, but i cant seem to get it to work any help would be appreciated manual is no help here
