A few facts:
Dash speakers in the dash reflecting off the glass is a poor idea. I understand it's better than nothing but, it does nothing good for sound quality. For most folks, it's irrelevant but since your reading these threads I'll assume you want something a little better the stock.
If your speakers are mounted in the lower door or kick panels and you think thier too quite you have a poor system.
Look at most new vehicles. My new Volvo has the $3500 stereo upgrade option (B&W) top of the line sound system with 19 factory speakers. With the exception of the center channel speaker on the dash (facing rearward), everyone if them are mounted in the lower door panels.
I'm currently installing my Focal component system and 12" subwoofer in my 85k20 along with two amps behind the seat.
Here's a photo taken yesterday of the doors I just completely rebuilt. I also lined the entire inner door panels with dynamat and double-sided foil jute insulation. The doors are solid, zero rattle and damped.
You can see the 6.5's virtually dissappear in my doors behind steel speaker grills. They are in boom mat baffles which protect them and enclose them for great mid-base. They don't protrude more than 3/4" and they don't get beat up like cheap plastic ones.
I'll save the 5-1/4" & tweets install along with the amps and custom underseat sub enclosure for another thread.
My point is, don't let your imagination get stuck on traditional thinking and myths. If there's a will, there's a way.
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