Is this just 2 speakers? A speaker will have a positive and a negative wire, I'd assume the blue's g together and the orange go together, which is positive and which is negative I couldn't tell you without looking at the reverse of the speaker, but generally I think the striped ones are negative. I took a quick look just now and have looked before but I do not recall ever seeing a sound card that takes raw speaker wire in as an output, I think you will need a receiver in between.