In researching options to add a DVD based monitor for the rear seat passengers, it appears there are several options. As I like to stick with OEM solutions, I found 4 different possibilities for those with the standard (non-panoramic) sunroof.
1. Overhead DVD entertainment console w/ 7" LCD and integrated DVD player
2. Front seat headrests w/ 7" LCD and remote mounted DVD player
3. Front seatbacks w/ flip-up 7" LCD and remote mounted DVD player
4. Portable overhead entertainment console w/ 10.2" LCD and integrated DVD player
#1
#2
- need photo -
#3
#4

OR
My thoughts...
The overhead version w/ 7" LCD seems a bit bulky, mostly due to a DIN sized DVD player. If you're tall, it would actually obstruct your view in the rearview mirror with the motion sensor mounted on the underside of the unit.
I don't like the look of screens in the back of the headrests, staring at you while you travel.
The seatback version has LCD's which can be flipped down, giving a cleaner look, but they also appear bulky.
So I investigated the portable overhead solution (plus you get a bigger screen and a portable DVD player!)...
Here's the parts rundown for those w/ the anthracite (black) headliner.
65 12 0 406 331 Install kit for Portable DVD system
65 75 6 928 429 Ultra sonic module, 04/2004+
51 44 7 068 306 Headlining console, front, black,
51 44 7 114 071 ULS cover, black
65 12 0 398 187 DVD system, Portable
65 12 0 411 757 Docking Station, black
65 12 0 411 776 Cover for portable DVD system, black
65 12 0 405 116 Mains cable USA NEMA
65 12 0 406 659 Alarm system install kit for portable
65 12 0 409 788 Retrofit kit, aux in portable DVD
Speaking with my BMW Dealer, list price for all of the above is a bit over $3000 with tax!!
Anyone out there have this system installed? Any feedback on the quality??