Water Leak through DAB antenna blanking plate

[jspyle]

I've come to the collective for help.

I have been chasing a water leak in the rear of the D3 for more than a year.
Yeh. yeh I'm slow at what i do.
Yesterday (7/7/16) it all came together thanks to showers in Sydney.
I now know that it is coming through the hole in the roof where the DAB shark fin antenna is meant to go.

Before i pull the plug out to see what i can see i would like to know the part number of the plug and what is underneath.
i have looked by pulling down the headliner and i can see the shaft of a bolt and a nut. there is also one of those "plastic rivets".
It is through the plastic rivet that a steady stream of water can be observed.

Does anybody know the part number for this DAB blanking plate?
Can anyone supply a parts schematic of the rear section of the roof showing the blanking plate and cover?

[sheerluck]

That plug part number is XUK500012.

Schematic can be seen here : Lrcat (http://new.lrcat.com/#!/12128/45758/46088/3582/46089)

[jspyle]

Thanks. The hunt begins. I'll report back.

[jspyle]

Well, I finally got around to fixing this leak.
Took me some time to get the correct part.
The correct part number for my D3 2009 is LR030842. (see image).
In the image, you can see the fault that was causing the leak.
I think that exposure to the sun and maybe it was tensioned too much on install caused the bolt to pull out. The other one shows signs of cracking.
I added a silicon bead when installing just to ensure my peace of mind.
It needed two people to install my arms just weren't long enough to get around the tailgate.
There hasn't been enough rain to properly test the fix but it does pass the hose test.

The internet reported that the part number XUK500012 was the part for this but it was wrong.
That part may be for a D4 or a Range Rover, I did not check. Fortunately, the parts guy made me open the parcel and verify it against the original that I had with me.