...I have also already modified it with several stock or modified items from higher models.....Autodim rearview mirror.
Which one did you use because I have been meaning to get to this. I was thinking of getting an aftermarket one with a screen built in so I can add a forward camera, but by the time I get around to wiring that in a driveway that isn't conducive to car work, I'd be better off going the simpler route with just the auto-dim upgrade.
Also with an LS, we don't have any of the wiring harnesses that come with the LTs and higher trims. So if you add the Caddy mirrors, you are just getting big mirrors and none of the extra features like puddle lights, auto-fold, etc. We are missing about $1000 worth of wiring harnesses to up-fit our trucks unless we go aftermarket components or buy the harnesses (e.g. heated seats, memory pedals, etc).
I prefer cloth interior over leather so I had some custom crushed velour seat covers for all 3 rows put in. WheelSkins leather wrapped steering wheel cover - Love the feel of a thick steering wheel. Also I like a sound system but I do NOT want a box taking up space. I ended up making a fiberglass enclosure for a 12" shallow sub that's mounted in my side rear interior panel. Added an app and tapped into the speakers for the rear doors with a high to low converter. This was my first attempt at doing glass work and it came out half decent. I am also adding RGB rock lights and an LED underglow kit. Added RGBs behind the front grill. Did a cheap amazon interior mood lighting EL wire install also.
The rest of my mods are go fast goodies but I am always interested in seeing what others do to either improve the creature comforts or appearance mods.