MJs only came with the B-pillar lights, no dome light in the headliner. That XJ console was cut down to fit the MJ's shorter roof. When I did mine, I blocked off the end you have your hand in with some plastic, I also shaved the part that contacts the headliner so it would not stick down as much at the back.
Edit: How many of those plugs do you need, I think i have a few in gray.