Hi there. New to site and finding it right chock full of good info. Hope y’all can help me with my Beast. It’s a 1982 Chevy P30 stepvan converted into a rolling workshop. Just completed an in frame rebuild of the motor (which I really didn’t want to do but circumstances....) Anyhow, I’ve burnt the center button out of 3 dust caps and am at a loss as to why! I only have one suspicion, but need to find out what this part is. I know it must be some kind of relay? but not sure. I cracked it during re-install (taped it up and crossed my fingers)