RE: Dollar General grocery?
I’ve never seen a DG grocery store. I do use DG a lot for 1 or 2 grab and go items when I don’t want to fight the crowd at WM or Kroger.
RE: Problems with 7 Pin Connector
If the prongs have a split in the middle of them take a small flat blade screw driver, put it in the split and spread them so that they fit tighter. This works for me on the pigtail of my tractor trailer.