I just set up my entire Home Theater system and am loving life. However, I cannot figure out how to hook up my Playstation 2 to enjoy surround sound (currently using the red and white cable into my receiver). My receiver is a Sony STR-DE545 and it appears that I have run out of the Digital Optical Inputs. Have one for the TV/Sat and one for the DVD. Anyway to split a digital optical signal? I really want to enjoy the football game in full surround sound. Thanks.