I really appreciate your quick, detailed reply on this. You sound like you know what you are talking about. So the fact that I have so many tweeters actually cancels out the highs? Wow I never thought about it that way but it certainly makes sense now. Since the holes are cut, I really need to keep the 6x9 sizes front and rear. What about this: Cutting the wires to the kick panel and rear deck tweeters and replacing the door panel tweeters with something quality? They are mounted at the base of the a-pillars already. Would this bring everything forward and upwards? Should I replace the 4" dash coaxials with a midbass driver? The amp seems okay. It is loud enough, just can't EQ my way out of this mess.
I really don't want to throw everything away as you can tell.
you can make it work but disable anything on the rear deck, absolutely nothing back there. Definitely swap out the head unit, no way around that. What you plan requires multiple channels of output, the main thing here is you need to be able to control each mid, midbass and tweeter seperately. However what you are doing is just full range upon full range which is a disaster. Each driver needs to specialize in its job. Each driver needs to be time aligned.
Here's a simple explanation of what i mean with TIME ALIGNMENT. your left side is closer than your right side speakers. So you will hear the left side a lot more and it'll just sound like noise rather than any real sound stage. Time alignment delays the left side so it plays a little bit after the right side which makes both sound waves reach your ears at the same time thus recreating a phantom centerstage on the dash. You need to be able to do this with EACH driver you run. If you have a kick panel mid and a dash coaxial, this cannot work because they are different distances and locations and they will be sharing the same channel which means you cannot properly time align them.
This is why fewer is better. Unless you are willing to shell out a 600 dollar Digital sound processor with 8 channels of output, its best to get rid of your dash speakers or kick panel speakers as well. Make a choice.
the pioneer 80 prs is 3 way network capable meaning it can control low aka subwoofer, mid and high. Meaning the optimal configuration is 1 pair of midrange/midbass and one pair of tweeter. IT has active crossovers which means you can choose any crossover point you need along with the slope for a perfect blend between mid and tweeter. To perfect that blend more, the head unit has speaker level adjustments which basically is a fine tune output control for tweets and mids so you can completely bring the sound stage up by making the tweet a bit stronger or the mid a bit weaker. Then you can time align the drivers and recreate the centerstage. THen for the cherry on top, a 16 band EQ which further raises and expands the soundstage bringing out every detail possible.
When you are done, you should be able to hear the singer dead center, instruments like guitar and bass, piano will all be in their respective place on the dash. Drums behind the singer able to sweep across the dash. Its not listening to music anymore, its seeing music live. If someone is walking across the room in the recording, you'll basically be able to see it through sound.
Needless to say, without that SQ head unit and running the proper amount of speakers, none of this will be possible. Best you will achieve is what a cheap pair of earbuds will sound like. A glob of sound, no soundstage, no detail or clarity.
If you want to run a lot of speakers, you can gut your doors and do two 8 or 10 inch midbass in each door on a big 2 channel amp while getting powerful tweeters on a moderate sized amp. You really dont want a lot of tweeters in your car. Best to just have one good set.
So 80 prs
6x9s on rear channel, crossed over around 2.5khz to 3.5khz low pass
tweeters on the front channel high passed anywhere thats needed to achieve a blend with the mids
