The idea that it worked after slamming the door indicates a weak connection. Have you checked the ground cable both at the battery and on the vehicle (engine block/body)?
I need to know what stops working. You said it dies when you turn it off and when you slammed the door, it came back on, so I'm a bit confused as to what is happening.
Let me know.
Sunday, January 24th, 2021 AT 7:38 PM