McIntosh c2300 remote: will it work with mac cd

I have a Mcintosch c2300 preamp. The remote should work with my macintosh mvp861 DVD / CD player, but it currently does not. Does anyone know how to sync the remote so that it will control the MVP861? Thank you in advance.

Do you have the "DVD Data Port" on the C2300 connected to the data port on the MVP861?
I do have such a port.