I have two stereo systems that work fine, other than the actual sound coming out of the speakers. I'm not sure what I've done to them, but I think I somehow blew the plugs or something (because other speakers don't work when I hook them up to the stereo). I would like to be able to use them again, but I don't know how to fix them and I figure it will be just as expensive to buy a new system. So, I guess now I want to know how I can recycle them. Any ideas?