I need some advise on my surround sound installation my speakers are round and I had my home pre-wired; however the true delima i am having is the size of the box in the ceiling that holds the pre wires is small...the backs of my speakers are much larger the diameter of the speaker is 10 inches ...how would i install them flush to the ceiling the "electrical box" is in the way...Is there a way the box can be taken out without going into the attic????