Find a dealership you trust and use them for your maintenance or find a good independent shop.
The major advantage to going to the dealer, epecially during the warranty period, is that they will have no reason to deny a claim based on service history or lack of.
So, did you just cut the wire lead to the tweeter in the center channel? I thought of doing this to get a true mid-range effect but haven't put in the effort to get it done.
If you have the money to pay off your new vehicle, I'd pay it off.
My 2021 is paid off and it is a very free feeling knowing I don't owe a dime for it.
Take the money you would be paying every month and invest it as freely as you'd like, or use it to pay down any other debt you may have.
I can't speak to the JL speakers fitting but many people here have used them in the front with few complaints about them hitting. I think it's pretty well known that they won't fit in the back. I used Kicker KS series all the way around and have been happy.
I ordered but never needed the...
Mine is already chipping in the same spot - bottom rear corner of driver's side back door. I don't even really notice it but will bring it up to the dealer just so they can document it.