[Lars1776]

Thanks to budget and styling I assume.
Per usual, front door speakers fire at your ankles, allowing their effectiveness to be at a poor percentage, a far cry from standing at Best Buy and listening at ear level!!!!!!!!!!!!!!
Similarly, eyeballing the rear speakers, they fire sort of to the car centerline, and are lovingly aimed at that fine sound absorbant material on the rear seat backs and on the package shelf.
SO
My gut says substantial improvement using stock speakers (oh no, I dont get to talk to the Good Guys at Crutchfield?) by the following---
A. Do a major redo of the mounting of door speakers so they aim at the listener as much as possible. Some aftermarket speakers have tweeters that can be aimed, a help for those elusive highs.
B. Likewise at the rear. There is NO CHAMBER for the bass to resonate in, nada. Relocate rear speakers rotating them so they fire forward, and add an enclosure to extend them likewise.
now
I already have added 12" sq. 1/8" plexi reflectors onto the pkg shelf, helps some but only soso. Drop the seatbacks so that same reflected souond bounces forward and you can EASILY hear trhe difference.
Time for some redesign before buying new electronics components?