Hello I am extremely new to installing a stereo into my car but i do want to learn how to. I have a 1997 Chrysler Concorde and have been reading up on installing my stereo which I had installed in my old car but now want into my "new" car. I bought a wire harness for the 97 Chrysler Concorde making it easier on myself it was fairly easy matching colors together and plugging the wires in with the factory harness. My problem is that on the factory Stereo from the Concorde it has a grounding wire (if that is what its called) and it was bolted to the back of the factory stereo. I wrapped the ground wire from the back of my aftermarket stereos harness to the Concordes grounding wire figuring that would be good enough. I decided to try it out and actually got the power light to light up and the memory card slot to light up but that is it. It will not turn on at all. I am thinking the problem is the ground but I have no idea what to do with the grounding wire or the ground wire from my stereo. If someone could please help it would be much appreciated and would save loads of time going through many useless videos I have found on the internet.