What’s a good resource to help me fix electrical issues with my 1999 Buick Century? In short the windows will not roll down without me twisting 2 wires together inside the door. However when I do this, they start to smoke. Also, the dash lights go on and off at night when I shake the door switch unit. (don’t know how they’re related) When I examine the wires its obvious a previous owner cut and spliced different wires together. Also the wire I twist together to power the windows is bare. I’d like to fix this myself, is there a website or book that would help?