speaker upgrade

Hi. I've got a '14 with the JBL package. I just swapped out the JBL head unit with a Kenwood DMX907S -- I wanted Carplay. I've never in my 30 years of car ownership added aftermarket audio parts. I'd like to make some more improvements, but don't want to go down the rabbit hole of rewiring...

I am working on an audio project where a set of speakers are installed in the existing pockets in the rear seat side panels. How do these panels come out ? Where do you start and what else needs to be removed to access that area ? I assume they are held on with clips and or pins like the rest...

I recently changed out the speakers in my (9 spkr system) 2010 FJ.....Here are some things that might help others... #1 --- A Dremmel is your best friend ! #2 --- A solder gun/iron is a MUST!!!!! #3 --- Crutchfield is only MARGINALLY right about what fits and which wire . ...