Big Big Problem

Hi Guido and all,
thanks thanks thanks for your quick answer.
well my problem about pixel is that not all of them are working so i'm not really able to see which radio station i'm listening or how many degrees out side or how many km i done.
i never tried to open or repair it by myself.
but i know that it is very expensive.
What i can do?
Another question:
my very lovable car (e38 '96 725tds) is equipped with just a radio/cassette system. i suppose it is pre-wired for a changer cd but in the trunk there's nothing.
well does anyone sell a changer or can suggest a better choice than a changer inthe trunk (i.e. ipod)