2.1 speakers and PS3 with composite

[Powka]

Hey,

I was wondering if anyone can help me out here and let me know what adapter(s) do I need to get so that I can hook up my PS3 with my PC 2.1 speakers?

PS3 comes with composite cable. Just exact names of adapters would be great so I can look them up and buy online.

Thanks guys!

 

[Powka]

By the way, the speakers just have a regular headphones jack that is coming out of a subwoofer.