Way cool. I did something like this because whoever broke into my 4Runner a year ago, busted and shredded all the rear interior panels (plastic, 1985) to get out the $10 6x9 speakers! Bastards! I woulda given them the crappy speakers if i'da known. Now it's carpeted plywood panels with the speaker holes hidden behind the carpet. So now they cant be seen.

85 4Runner - With NEW Marlin 4.7 Gears!! It's a whole new beast!