Hello there PF. I'm currently attempting to repair an old headset of mine that had the cord broken. The only thing is that I can't get the wires to make a connection. I know that wires such as these have a special coating on them that prevents shorts when they're bundled inside insulation bare. The only thing I can't get this coating off. I tried to burn it off with a soldering iron, and that didn't work. How are these coatings usually stripped?