O.K. I had decided on some speakers for my living room based HT. The Wife put her foot down and does not want speakers showing in the room. We agreed on in wall units(except sub and center). My question is seeing as once these speakers are installed I have no way to aim them, the speakers I have picked out do have a tweeter you can aim, however the other drivers in the unit are stationary. Any ideas on how I can get them in the proper place without being able to test them first? ANY help? I have never done inwall before. Truthfully I am lost! My room is 14 long by 12 wide, the back of my room is a stair case leading upstairs.