Okay, I tried to take socket apart, no go.
Spring, looking in from the bottom, not touching any wire. Straightened the wire ends a little, but they didn't look like they needed it. Anyway, now it is working like it is supposed to, for the time being, but I am not messing with it any more. If it ever acts up again, insulator will go back in, I don't put anything in the trunk anyway. Haven't driven the car since I bought it. Thank you all for trying to help!
Sometimes, it is what it is.
HAPPY NEW YEAR!