Ajax,
Thanks for the reply. I know I'm an idiot.
I was thinking that the subwoofer cable was different. And that if you had 6 cables (3X2) that you would have one too many. But I'm guessing that it wouldn't make a difference if you hooked up the 6th anyway but didn't use it because you were using a separate subwoofer cable.
I just want to order the cables so that I would have them when my gear arrives.
Thanks again for your help!