I have a 2002 Grand Prix that I bought last year. The aftermarket stereo that had been installed was trash, so I decided to replace it after a year. I bought a Pioneer head unit and went to install it. One of the previous owners already cut the factory wiring harness and the wires for the stereo that came with it were spliced directly to the stereo wires themselves and someone had rigged the ground wire to the amp fuse. Well, I got this one properly grounded and hooked up the constant power supply. I also got all of the speaker wires hooked up. The stereo has power, but there is no sound. I figured out that the amp control wire is dark green and hooked it up to the amp control wire on the stereo harness and I get a buzzing sound like the speakers are now getting power, but still no actual sound. What am I doing wrong? Is there another wire from the amp or that I need to hook the amp control wire up to? I keep seeing mention of a pink wire that goes to the amp, but there is no pink wire that I can find.
