One day my power windows, power locks and power mirrors stopped working on my 95 vert. All the fuses and circuit breakers are good. I took the door panel off, and when I ground everything, the work. So there is power going to everything but they wont work unless I manually ground them. Is there maybe a common module under the dash that they all plug into, or is there something else I am missing. I am lost, and getting frustrated. Thanks.