the problem is , you have bad speakeritis, or fake speakeritis ( definite possiblity ) and earwax liberating treble-itis.
prescription-
lose the tweeters
lose the 6x9's
what about the fronts? judging by the rest of your system, some sort of 6" pioneer in front. lose that too
and most importantly, LOSE THE INSTALLER. You've spent enough money on the wrong things already.
get some proper 6" comps, for the front and 6" coax for the rear ( should cost ~10k)
go to a good installer ( check with the bangy bhpians for recommendations) , and let him unpimp your car |