I have an '01 non NAVI EX. The dealer mounted the 6 disc changer under the driver's seat and the Kelton subwoofer under the passenger's seat. I did have to adjust it down so that my wife wouldn't feel the bass excessively. It's not that she is averse to any bass, but thumping definitly not. Others have stated on different threads here about personal taste and experimentation in control adjustment. You will never get the thump of tube style subs, but you will appreciate the extra ooooomph!
I did use the shakers in my 1997 Odyssey. I did feel them. I did not hear them (they are not for hearing bass).My installer said that they were developed for home theater use, to give you the shake in your seat for emphasis and that they had been used as well in car installations.
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'01 SS EX: Leather steering wheel wrap, fenderwell trim, splash guards, door guards, Honda cargo mat, Honda cargo tray, Honda 6 disc CD-changer, Honda cassette player, OEM Kelton subwoofer, Honda front speaker upgrade, Pioneer 1086 rear speaker (with baffles), Honda emergency repair bag, Honda trash chute, Honda glovebox organizer, WeatherTech front deflector, WeatherTech wind and storm shields, Thule roofrack system, Plug'n'Go center console, Ractive silver/kevlar shift knob, PIAA x-treme white 7440 reverse light bulbs, Sylvania CB-9003 OEM replacement headlight bulbs, fitted HeatShield sunshade.