I have a Trunk Disc Changer for sale. It came out of my 91 535i when I bought it. I took it out as soon as I bought the car to put other stereo eqiup. in. They retail for like $450-500.
Make offer.

http://i5.photobucket.com/albums/y165/bekraig/cdchanger.jpg

i have no idea what a used one is worth, how much you looking to get for it? i assume it will work in a 94 530? also, where in ks are you living?

Check your pm's.