I have a Phillips HTS3151D in my dorm room. Right now I have it connected to my PC through the regular audio speaker jack with one of those RCA to 3.5 connectors. The problem with this is that I only get Stereo and the system is 5.1 . I'm using the on board sound of my BioStar TF560 A2+ motherboard (RealTek ALC888 sound ). I'd really love to get the 5.1 working because I'll be using my PC as my TV in my dorm. Any suggestions?