2003 cv intermittent electrical

On my 2003 CV, the window control module died. I replaced it, it died again. I left it and it revived a few months later. Now the climate control blower motor is intermittent. In both cases the ground is missing. I believe its bad wiring somewhere. Has anyone had problems with intermittent electrical like this?

I had the wiring plug for the blower motor melt on my 2003