Originally Posted by mccorry
I pulled the free-air plate out of my '05 deck a few years ago (it is a metal plate and gasket held in place with 3-4 bolts)... but I never cut the actual "carpeted" decking. I still get pretty good bass transfer.
The difference in modifing the deck itself is considerable. Only removing the plate, while marginally effective, does not provide the same result.
Of course, you will be altering a factory part and for some, that is unacceptable. For the aesthetically stringent there is the flushmount option like mine.
Note to the interested:
If you don't want to actually cut the deck, then the portion of the instructions to remove the seat and deck will still serve you well. You will experience roughly 15% of the benefit w/o deck modification. So choose your path dependent on your taste and happy modding..........