Will a 50 watt speaker be able to connect to an ipod using an aux cable directly from the speaker? Answered

I was about to throw away a soround sound system that no longer worked but, I wanted to use the spekers individually and connect an aux cable to it... What I'm trying to create is a portible speker for my ipod. The speaker is 50 watts can this be done and how? Thanks for any info you give.....?