Ok, perhaps I didn't explain myself very well.....
On my rig, when I connect the electric, water etc to the side of the rig, I can reclose and lock the door back up as there are slots at the bottom of the doors for the hoses/cords to stick thru. BUT the door to the cable won't close back up as the connection sticks too far out.
Is that any clearer...?

I do believe your last picture is what I need!! Pancake is good! Where do I get one?