Dome not lit when driver door open.

I think it is suppose to ground the circuit thru the D connector on the light switch. That is if you get a good ground to your cluster

It does, but that isn't what makes the light come on when you open the door.
Not on the Dart I have anyway, as both my door jamb switches are single connection (one wire) and all they do is ground the wire connected to them to the body.