I mentioned in another post on this board how I owned a brand new 15' Tacoma and had to sound deaden the entire truck with the factory premium audio. My 99' 4runner has a pretty decent sized system, even on the song's with heavy bass, it gives a solid back massage from the cargo area to the drivers seat.
I've gotten out and listened, not much sound makes it out of the cab. Nothing is vibrating or rattling. I opted to do almost zero sound deadening on mine thus far. Very happy with the quality of the interior parts fitment/sound capabilities from the speaker locations.
I am running;
Kenwood touch screen
New model Type-R components up front
Type R 5 1/4 rears - lot's of cutting to factory brackets but they fit
Type R 10" 2 ohm sub
125 rms to all door speakers
900 rms to the sub
Bought everything being a cheap ass, brand new, have $725 into the system. Installed it myself, that is counting deck, dash kit, amps, all speakers, subs, nice box, 9-wire harness and the whisky. Ok, I already had the whisky. :roll: