Guess we know who wears the pants in that family... Grow a sack and remind her it's your home too.

That aside, I've actually thought about this myself. I suggest you pull off the grill and see how much free space is in there. Determine what can and can't be cut out to make room and have fun.

I would hope your wife will sooner have the speaker in its correct position than see you go after your new television with a jigsaw though.