To take apart the rear wall, take out your rear storage compartments. you'll need to take out the big top panel, and the side panels that cover the speaker. then take out all the 10mm bolts on the big black panel. Roll the back window down. Then, the black panel is caulked into place. pry it off carefully. lean it back into the car and disconnect the wiring for the defroster. There are drain holes at the bottom for water that gets in around the window. It's dirty and dusty in there... The bad thing is, the glass goes down almost all the way, so porting wouldn't be easy at all, unless the ports were only 1/2 inch tall...