A Real Headache please help

[AK47]

Hi Guys well,,,,,,,,,,hmmm interesting day stipped the door panel off while the door was closed ,nice job that was,,,,,,,,well i think yes, to the BCM,,,,ITS DAM STRANGE the car was fine , then it started doing this **** ,,,,,,,,,christ it wakens the people next door in the middle of night when the alarm goes off, why? because it thinks someone opened the door ,,,,,,,i dont know ,,,,i find it wierd that the air susp ,wont work , because of the door , jesus .
Anyway where is this BCM, what does it look like ?, can i replace it , plus what do they cost? ,,,,,the only thing now is finding someone who will supply me ,,,being over here no one wants to know.
ok a couple of other things while i mind

1 door mirrors yes old prob i think can the little motors be replaced ,is it the motors that fail ? which fuse do they run off?
2 the radio who can tell where i get a conector so that i can use a external cd changer , and yes can this be done with ease,,,,i have in dash 6 player that doeas vot work so i thought i could do this or where can i get a radio '
3 I AM IN EUROPE SO TRAILER electrics are different ,,,,,,,,,point is does anybody know if there is an adapter that will plug in which permits me to hitch a european socket