So i have installed an aftermarket stereo for the car by a shop. But i didn't like the way it sounded so i connected the wires back like they have been from factory. Everything was working fine until i removed the positive from the battery to remove the + cables for the amps. When i put the positive back to the battery, the car didn't want to start, tried jumping it and it turned on amd shut off right away, rpm's didn't work or anything on the gauge cluster. I will post a video so you can check it out. Thanks ! Oh and no faults were there before not starting.