Now I feel stupid wiring my MAX360c over the river and through the woods to the passenger foot well..
This was back in 2020 when I was stupider.. so.. ... not much progress since.
My Supra has gas that was pumped in Sep 2021 and will pull out first week of April.. given dry and no salt on the ground. I only use Stabil360 during each fill since I only drive about 1000miles a year.
No issue. I been using Stabil on all my hobby cars that hibernate 5-6 months at a time and...
The Supra drives excellent. I use tire psi on the high side, but no issue at all.
The only issue one might have is getting in and out of the car.. I usually just fall out.
Amazon.. I have it but kept mine NIB..
https://www.amazon.com/Tamiya-24351-24-Toyota-Supra/dp/B0813GGM2V/ref=sr_1_2?keywords=Tamiya+supra&qid=1644706262&sr=8-2
I'd just remove the door card and the finisher, check the mounting bolt torque.
Dealer can definitely do it, or I'm sure you can check out YT for some stereo speaker swap vid to see which bolts / clips are to be removed.
As for Safelite, I think it really depends on the tech who works on your car. Mine was very good when he did another car I owned in the past (besides the fact that he was about to wipe his finger smears off my A-Pillar with a paper towel on a black car o_O)..
I'm not sure, but I think as you noted, only the dealer can update your car's history and it becomes published info to places like CarFax (USA).
I do all my maintenance at home and never return the car to the dealer unless for a major recall that I can't fix on my own or have a remedy for.. so...