Can replacement jacks be purchased for rock band cymbals?

One of our young kids pulled the wires out of the angle jacks for the cymbals. I bought some jacks at radio shack. The problem is that when I look at the original plugs they seem to have soldered 3 wires to the plug. However there are only 2 wires. Which wires get attached where? I would prefer to buy pre- assembled replacement jacks. Does anyone know of a source to buy replacement jacks?