I have a home theater system Panasonic SA-PT160, with good speakers. But the only connectors it has are SCART, left and right audio and an antena. I want to connect my pc to it, but the only way I figured is with left right to aux. And that way I can only use 2 speakers, and I want surround sound and subwoofer to work. Can anyone suggest what cable should I buy or adapter? I am using the GA-990FXA-UD3 (rev. 4.0) mobo.