HT,
If you are wet sanding to 2000 grit to clean, when you are finishd sanding, polish with rotary or DA and medium polish, medium pad. Final polish with finish pad and mild polish.
An example would be an Edge green (or orange) pad with Menzerna IP or PoorBoys SSR 2.5 followed by an Edge white pad with Menzerna Nano or Final polish or PoorBoy's SSR 1. There are a ton of products that work from 3M, Meguiars, Four Star, Duragloss and others as well as pads from Lake Country and others mentioned in this post.
Once polished, protect with Plexus or a similar product for UV protection. It sounds complicated but starting from scratch it is less than an hour project for most people. Remember to wetsand in opposite directions (EX: 800 grit left-right then 1000 grit up-down) for each grade of paper as you sand.
One big helper that I figured out was to use a pink pearl or similar eraser as a sanding block and cut the paper to wrap around it. It makes it easy to hold and stops any mistakes on your part.