cd/video player instead original cassette player

I'm really sorry but i don' t speak german.
anyway i have a question for you gentleman.
i would install on my E38 725 tds'96 a compact video/cd player instead of the cassette player.
i would check and command it from the old command steer.
Is in your opinion possible
have anyone done a change like this before?
Do you know some site to get infos?
thanks in advance
Gil

[Dieselkraft]

here:  http://www.bimmernav.com/index.htm