I'm guessing "port" refers to a built-in recess in the wall where a speaker (or decorative object for display) can be placed. I'm a big fan of using those recesses for decorative objects and putting the speakers where they sound best.
If you get too much pushback just arrange to have downlights installed in the "ports" -- nobody with a decorating eye can resist putting pretty things in a lighted wall recess. There is a proper foo-foo name for these things but I can't remember what it is.
If they are true ports (open at the back into another room) I would be concerned about putting speakers in them -- although they might be good for an "infinite baffle" arrangement.
EDIT -- seems like they are wiring ports, not speaker recesses. Ignore this post
