radio tuning of BM7000 might not be that easy with Beo4.
I would recommend Beolink 1000 (last version, with LIGHT button)
The 5000 and 7000 are ideal for BM7000, as they are 2-way-remotes, but fragile, expensive,
and controlling DVD1 is not ideal with 5000/7000.
The Beolink 1000 is easy to find, not expensive and very robust.
It doesn't have a DVD biutton, but control is possible by selecting SHIFT + SAT
The MX7000, depends on the version, Beo4 is ideal for the later models,
but Beolink 1000 can be used as well.