Spacey,
We manufacture 2 types of products with respect to BMW vehicles...
Revolution 2 (Power and Manual) and SL Series (Factory Part for '09 BMW X's w/ Active Headrests)
Both have A/V inputs on the front panel and on the SL Series it is covered by 2 small hinged doors on the far left and right.
Both have A/V outputs via 3.5mm jack located on the front panel, on SL Series these are covered by hinged door on far left.
The only thing located on the control box are inputs for the Headrest wiring, power, ground, and FM antennae.
You can stream Audio and Video via the A/V output from the front of the panel on both products to any piece of electronic technology with an A/V input. (Again this all depends on what connection wire you purchase as a consumer, A 3.5mm to RCA MALE will work just fine.) For example I can run a 3.5mm MALE from the REV or SL to the 46" LCD Screen TV in your living room if you wanted to and had a long enough cable. Alternatively you could take that cable and reverse it from your Video Camera going 3.5mm to RCA MALE to the front of my products and edit your home movies. The cable can be used for both tasks.
In the center console of most BMW vehicles there is a standard AUX 3.5mm input labeled (AUX IN) you can run a 3.5mm to 3.5mm audio cable from the front panel of either of my products directly to the AUX IN to receive sound through the speakers and bypass the FM Mod. THis would be the same case if you had an iPod with no BMW iPod cable and just ran the 3.5mm to 3.5mm male cable fro mthe headphone out (iPod) to the AUX IN (BMW).
DISCLAIMER:These cables are not included with DVD product or your specific BMW vehicle upon purchase. You will need to go out and purchase these cables yourself.
For just Audio: 3.5mm to 3.5mm Male (Radio Shack) couple bucks
FOR A/V: 3.5mm Male to RCA Male (Radio Shack) couple bucks
Law
Hope this helps.