There are lots of options for sure, only limited by creativity
Here's a few pics from my recent upgrades during the build process:
https://imgur.com/a/rCe7lBg
-Pioneer somethingsomething-2550 head unit w/ remote display in ABS 3D printed bracket, using the blank canvas on top of the center console. The main body is in the storage box behind the driver's seat.
-Hybrid Audio 6.5" in fiberglass kickpods (no drill / no permanent mods)
-Hybrid Audio 2.7" / 1" mid/tweeter in ABS 3D printed dash mounted pods (no drill / no permanent mods)
-MB Quart shallow mount sub, soon to be replaced w/ a JL Audio 13TW5V2
-Alpine X-A70F amp for spare-tire sub & woofers
-Alpine PXE-0850S DSP + 25w x 4 amp for mids & tweeters
-PXE volume control in ABS 3D printed holder, replaces the dash rheostat (no drill / no permanent mods)
I'm usually questioned by other owners about losing the spare tire to a subwoofer. It's 100% worth it for amazing sound.
You can actually remove the cover to the jack storage & the tire can sit in the trunk without issue. For long trips, I just bungee cord it to the shock tower brace.