I did about 80% of my CD Player install tonight. I cut apart the dash and fought with the old stock radio to remove it. I then hooked up a wiring harness that I wired together to connect the truck to the headunit. The headunit is a working unit, as I had it in another vehicle recently. The wiring harness that the truck has are 3 plugs. 2 for the speakers and one for the power. The wiring harness for my headunit has 3 power wires (red, black, and yellow). On my last vehicle, I only hooked up the red and black wires and everything worked just fine. However, when I plugged it in tonight, the headunit got no power at all. I checked the fuses and everything is fine. Does anyone have any suggestions on what wires I need to use from my K5 to power the headunit? I basically need to know which colors to connect from the K5 to my headunit's red, black, and yellow wires.