I just finished installing 11" headrest monitors in my car and wired them up to simulate DUAL zone with the D3. This simulation requires an external source such as a dvd changer, dvd player, ps2, etc.

The headrest monitors have 2 sets of inputs so I hooked up av1 to the rear video out of the D3 and I hooked up av2 to the ps2. I had to split the ps2 a/v outs so I could connect both the D3 and the headrest monitors at the same time. Now, if I set the headrest monitors to AV1, they work with the D3. If i set them to av2, and use my ps2 to play a movie or play a game, the headrests are now independent of the D3. I have wireless IR headsets for the audio to the headrests so everyone is happy.

hope that helps others wanting dual zone with the d3.

Check out this other thread for more details of the install and pics.

http://www.benzworld.org/forums/w163-m- ... thers.html

i doubt anybody is gonna want to register just to see pics.

pics of dual zone in action...

Fast and Furious Tokyo Drift in the D3 dvd slot playing up front and Gran Turismo 4 playing from the ps2 in the rear. I also just found out that I have speakers built into the headrest.