I did speak to Lawrence, and while the new Invision kit does have some neat features (USB MP3 audio and MPEG-4 video), it does not integrate to the existing factory sound system nor can the glove-box DVD player act as a source for the rear displays.

I'd really like to find an adaptor/harness that would output the DVD changer AV to the rear. That way it could all be controlled via iDrive, which is especially useful when younger rear passengers aren't savvy with the Remote Control yet.

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2007 X5 - 3.0, Space, Black Nevada, Bamboo, Premium, Tech, Rear Entertainment, Running Boards, 3rd row, Sport. - BMW buy-back
2007 X5 - 3.0, Space, Black Nevada, Bamboo, Premium, Tech, 3rd Row, Sport, Comfort Seats, iPod - ordered since 8/8/07, arrived DOA 10/23/2007
2008 Acura MDX Tech Entertainment...11/07-04/08 LOL!
2008 X5 - 4.8, Space, Black Nevada, Bamboo, Active Seats, Premium, Tech, 3rd row, iPod, Sport w/20's

2007 335i Sedan - Graphite, Gray Dakota, Aluminum, Tech, Sport, iPod.