M-Audio BX8- Mac G4 iMic connection?

I just bought a pair of M-Audio BX8's for my den. Does anyone have these speakers? I'm trying to order some cables and need to know what connections and/or adapters I'll need to work with my G4 DA 733? They are self-powered and I am currently using a Griffin iMic. I'm hoping there is a way to connect them on the iMic end via mini jack.

Thanks for any advice,