Looking for help here. I had the z130 installed in my truck, watched the video to bypass on youtube. The harness they use (and everyone) is the white harness attached to the stereo. For whatever reason, my stereo is hooked up and only using the lower black harness. Do i need to redo the install with the white harness, or is there another bypass available using the black harness. And does anyone know why the would do this different than most....