Ok got it. But still a doubt. Jans talk something about the BMW Aux Input. Do I really need this part if I want to have the DVD audio outputted via the Stereo Hi Fi DSP system.???

If so, Where I can but this ?

Finally, I am understanding that I need to buy the TvOnNav module which is 199$, and also a BMW Aux Input right ???

I would appreciate your help again.