E36 M3 CD Changer

[lurehegis]

I have a 1995 E36 M3, and the CD changer in the trunk doesn't work.

I looked for markings on it to see what it's called, and all I found was this number underneath it:

M4XL6MM

and on the front it just says BMW 6 CD Changer.

Can anyone please tell me what kind of CD changer this is and/or where I can get a new one.

Thanks.