I tried running a search and I was unable to find any information on what you want do do, they all seam to lead to going to beocenter 2. I am not sure if what you want to do is possible or not, but I am sure if it is then somebody around here will be able to help you.
I don't know why B&O is such a pain when it comes to finding information on older products but from my memory the BeoCenter has the basic inputs so a cable like this should take care of it
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