E70 LCI / retrofit rear interior light to a light with reading light

[Knubblo]

Dear Forum

My car was ordered without the "light package", option 563. I'll guess thats why the interior lights in the backseat is just lights when opening doors and no reading light with switch to manually switch on/off for reading purposes while driving. I am trying to figure out if it is possble to change to the other lamps but so far I have failed to come up with final answers. I do have some pictures and partnumbers though.

Still I haven' been able to remove my lamp so I do not know how it looks in terms of connectors and cables.

Attached are the part numbers I have identified. Pictures below. The back side picture is the right light, part no. 63316972972. Seems to be held in place with a clip.

Lamp with switch (reading light) color black
Left 63316972971
Right 63316972972

Lamp without switch (no reading light) color black
63316973624

Bulbs needed / unsure If I need both or just one. It says that Xenon is for cars with light package (option 563).
Long life bulb 5W / 63217160797
Xenon 6W / 63217160908

Anyone who can shed some light (:-) on how to remove the lights and/or post pictures of installation/cables etc are highly welcome.

/Knubblo