I'm working on an audio project and I'm having problems with the potentiometer. My intent is to take a stereo headphone-level signal and run it through the potentiometer as a volume control. I picked up a stereo 100KAX2 pot at Radio Shack and, while it works, I only get volume control at the last 10% of rotation...meaning, I can turn the knob for 90% of its rotation and get no sound, then the sound increases in volume rapidly. I want a nice, smooth taper. The part I picked up at Rat Shack is an Alps model, and the markings on it read "411G 100KAX2." It's the only stereo pot that Radio Shack sells. I have the input signal going into pin 3 and the output on pin 2. There's also a fourth pin on the other side of the pot (there's three in a row on one side, and a single one on the other). I'm not running ground through the pot...should I be? I have a feeling I'm just wiring this thing wrong, so how should it be done properly?