help me plz

OK well i spent some time today swaping in my sweet new JDM tails yes yes i'm a ricer god forbid i hated my leaky USDM ones
So i was thinking hey I should install my rear speaker mounts speakers Cargo light and cargo cover i looked around no love for anything 4th gen really.

I'm in need of doing this ASAP showing my car off and would like more then 2 speakers and my purty cargo light in too.

So can i get some help cause i already managed to bust one intioir piece *i suck at inside/body stuff rather deal with crankshaft pistons anyday!*

Also if i have some rex seats *pretty sure 88-89* with rails do they bolt up yea ney? I keep hearing diff things

Danke for your time and help

just take your time when working on interior, if it doesnt come off easy dont yank it lol, the rear plastics are easy to work with , to fit the rear speakers there are 3 bolts on the underside and they come straight off, hope u like the tails, post some pics up :)