Does anyone have any updates on these 2 things for the 2004 A8? Does anyone know of any aftermarket products that will not mess up the MMI? Can I get TV to work in this thing. Sorry if this is a repetetive question. I searched archives and couldn't find anything.

Don't know about the aftermarket on this yet.
What has Audi said so far?

Nobody knows. There isn't even a single article on the internet regarding these features.

A8's have been out for a year. Why is there so little info?

This is the closest info I've found:

2004s are wired for XM/Sirus, but require a firmware update and the tuner to make it work. ETA is "fall 04".

Supposedly, phones other than the Audi V60 will not work. There is/will be, a new Sprint phone available. The stock number is: ZAW376008

BTW, the stock number for the cradle is 4E0862407B

Did that help at all?