And how to make your own PW cable.
1: Peal off the black sheath first. When you do this, you'll see the copper wire shielding that wraps around the entire inside.
2: Peal the shield back and twist it into its own wire.
3: Remove the string and paper insulation from the opening.
4: Strip 1/2 inch off of the end of the red and white wires.
5: You are now ready to do whatever you need to do to the cable...
6: Crossing the red wire to the shield wire will fire the camera. Crossing the white wire to the shield wire will cause the camera to auto focus AND STAY AWAKE. This will make the cable act as a pre-release cable, and is highly recommened if you plan to use this on a remote.