Hmm. Well either way it's not a big deal to me if it doesn't work, I only took these cause I had to.

This is a closeup of all the connectors on the sub though:
The power prick I got looks to plug into the Power In connector on the left but has no volume controls attached to it, it could be easily for the wrong speaker set. When you say connections for 2 satellite speakers are you talking about the 2 sets of AV (reg,white,yellow) connectors? If so that's an odd arrangement for hooking up satellite speakers. Usually they just use a 3.5mm stereo jack or some proprietary jack.