infinity powered car radio for 2003 dakota

hello again, just saw someone post a speaker question and it got a few hits
so i figured lets put this out there .

I have a 03 dakota with the Infinity 8 speaker 6 way system with mode button
and changer controls .mostly all the local car shops here in cincinnati dont
want to touch the system to add a sub woofer without me gutting the system
,is this just basic get me tobuy more from them or is this powered speaker
system that much of a pain to add a woof.One local place whove ive gone to
for years for all my home and car audio said they tried one but got an
annoying hum so they had to put the car back the way it was.basically though
noone wants to deal with the unit and all i want is a liitle more bump in
trunk .

trying to feel young again,
Cyberjunkie

 

wrer do ya live i can do it

 

He said Cincinatti, Dave. It would be kind of a hike.

--Geoff