[Ian 2000GL LA1]

im not too worried about the SPL side of things now. as for my 15" i had 2 at one time i never put the second in, there for sale if anyone wants then the kid that bought them off me has both for sale now. he'd probly let them go for 500 or so each, but dont quote me on that.

18" would be easy you take your front seats out and assemble it in the cabbin, then slide it through the trunk, thats if you want the most airspace possible but i know you could fit at least a 14 cube box in the back seat if you take the door off, mine was 8 cubes and with the door off it went in and out no problem, you might even be abloe to totally assemble it outside and slide it through.

and as for bigger than an 18" , i looked at running an Incriminator audio Death Penalty 21" but its too deep to fit through the hole to the trunk anyway you did it even if you removed the beuty panel and seats to squeeze it through.

gutting an alero is a half hour job if you know what your doing it's really simple. i've had mine appart so many times. it sooooo easy after you do it the first time. only thing i havent fully removed was the carpet, top of the dash and headliner.