Hello, and welcome to Beoworld. In the past I have purchased pieces of B&O with these type of plugs. There is a 4-way socket they connect to. Athough, I would go with your dealers suggestion. Just cut them off, and fit standard plugs.
Craig
For millions of years, mankind lived just like the animals. Then
something happened which unleashed the power of our imagination. We
learned to talk and we learned to listen..