Extension of original Fordradio, installation of new DVD radio (German standard)

Servus, I’m new here looking for help. I bought a very well-preserved Essi Bj 97 14 days ago. Now I’m facing the problem, I’ve got a brand new DVD radio at home, it would fit into every normal narrow radio shaft. Only the Essi is too high (is American standard was told to me once).How can I expand the old original radio, and put my new one in the shaft? Do I have to buy listening to it or something like that? I’ve been driving Opel so far, and I know it all about it, but Ford is a new patch for me. Lg Robbi