Jason Pacheco

So I started working on putting it aftermarket stereo in my car 06 Chevy Monte Carlo Amp, Sub and Capacitor and I wanted to hardwire into the main wires of the stock stereo harness what I'm having a problem with there being an extra wire that has power going to it with the car turned off and my aftermarket deck won't even turn on!! I have a green with white stripe wire getting constant power, I capped off the 2 orange wires and the brown wire thinking illuminating and dimmer and mute right. I matched up the diagram that's all over yt and Google speaker wise 8 wires and am left with the one. I really need help figuring this out. Any help would be greatly greatly appreciated.