I removed the paneling on the screen side of the wall, hoping that the 3 1/2 foot concrete wall didn't go around the corner to this wall also. That would have been a problem. But, as you can see it's only about 1 foot high.


Here's the screen wall with the paneling removed. I'm shining a flashlight on the center stud where the center speaker would go. I'll have to move/remove it. These are 2x6's with a 2x2 tacked on for the inside wall for a total depth of 8 inches. The M80 in-cabinet is 18 inches deep, so this leaves 10 inches sticking out on the garage side.


Here's the garage side of the wall. Here I need to build out a cabinet area about 12 inches from the wall to house the backside 10 inches of the in-cabinet M80. It looks to me like it should fit. I'm going to re-sheetrock this wall in the garage also because the old stuff needs too much repair to make it look decent again. A lot of bad patchwork from the previous owner that doesn't show up here.