I ordered sound deadener today from Second Skin. I purchased the Luxury Liner Pro, which is a Mass Loaded Vinyl product. It'll be applied all around the rear of the car underneath the trunk's panels, as well as going into the wheel well liners. My goal is to eliminate road noise from the rear as much as possible. The tire roar is unfortunately my biggest gripe with the car, and my goal has always been to make this the perfect sports car/quasi-GT hybrid. If the sound deadener is a success, then the power mods will begin.
I also fixed the window trim and moldings today using GTechniq C4, which is a permanent restoration. It's the only one on the market. All others are basically just variants of tire shine that you apply every 6 months. They mask the issue more than anything. The C4 penetrates into the rubberized plastic and re-infuses the coating permanently (or as long as you maintain the finish of the car).
The window trim looked even more gray and pale at one point, but I had done some work to it earlier on last week trying some stuff out.