I have some 2 in 1 headset adapters from my old Kyocera 7135 that I would like to use for my Treo 650. One of the cable is a straight 2.5" stereo headphone with a mic attached to it. While the other one is just the adapter with a 2.5" jack with a mic that I can attach any stereo headphones to it. Instead of buying the Seidio 2 in 1 hybrid adapter (I want to use my own headphones), I would like to make the current ones work.

Currently the headphones work but when a call comes in, the mic works but I can't control the mic with the button on it. Is there anyone who can help me mess around with the wires to get it to work on the T650? If you mess up, no worries, I can buy the Seidio ones. One way or another, I won't let these old ones go to waste. Thanks in advance.

Here is a link to one of the adapters: