Well you just have to cut the cable in half and strip the insulation but you better look for some CalcNet documentation.

Oh then do what I said. White wire is tip, red is ring and shielding is ground.

The cable works for Calcnet2.2

red is right audio, black is left audio and green is the shield/ground thingy.

The simplest way to figure it out is to take a battery, light (a christmas light would work), and some wire and make a little circuit. First make sure your circuit actually works, and then use that to figure out which wire goes where.

If you don't have a light, you can use a 9V battery and swipe the wire across the plug. If you're lucky it will make little sparks when you get the right one. You could also use your tongue to check for current, but, that's getting kind of desperate

Or use a multimeter. Seriously it's the easiest way if you have one.

Yeah maybe you're right.