walling off your trunk is going to create very loose bass, and with out a good sub, it'll most likly sound like ****, to be quite frank, it's a horible idea period if you ask me, just my thought. not even sure what the question is, just giving a little side thought there. enjoy

 

Loose bass huh? I'm not even too sure what that means, but ok. There's absolutely nothing wrong with installing a false wall in a trunk SO LONG AS THE WALL HAS VENTS IN IT TO ALLOW FOR THE AIR TO MOVE PAST IT.