I am going to plug my iPod into one of the front jacks (Stereo, RCA, or Optical) of my Onkyo 605 to play music on my 5.1 system. Which would be the best quality for music ( 3.5mm Stereo to...) 3.5mm Stereo/RCA 3.5mm/3.5mm (I can't find a stereo to toslink) Thanks