I fully support this initiative, especially since I plan to do the exact same thing

Two of the things I most concerned about tackling are the headliner removal and reinstall and the door speakers (tweeters)
Any tips you can provide on the headliner?
I assume you're going full active, do you plan to run new wires into the doors?
Any pics and tips are greatly appreciated
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2021 2SS A10 - Summit White - NPP - MRC - Adrenaline Red Interior Pkg - Black Appearance Pkg - Ground Effect Pkg - Suede Steering Wheel and shifter - Red Calipers - Carbon Flash Wheels w black lug nuts - DD Tinted Side Markers - Hero Tinted Rear Reflectors - Redline Fender Badges - 20% Tint
Audio System Build Log
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2014 Z/28 Summit White - sold 2020
2010 2SS/RS Summit White - sold 2014