Splicing Cables

Dear interweb collective mindshare thingie: does anyone know the difficulty involved in splicing the cable of a computer speaker setup? I’m talking about replacing the male plug that you plug into the computer. The one attached to my speakers is damaged or something, and thus annoying me with its partial workingness. Thing is, I don’t want to completely wreck the speakers by slicing the plug off, only to discover that splicing is impossible.