Mine is also in the same spot as cab's, I put it there because its the easiest place to install, didn't require me to move/remove anything. When I add the tower amp I will probably re-install everything (again) behind that side cushion on the spotters seat.

I don't know about you guys, but in my boat that compartment is by far the 'wettest' part of the boat. Maybe the Outback DD having less freeboard is more prone to taking water in, and the fact that I leave mine in the water all the time might mean I get more water seepage from the cover or something...