Here are the photos.
I started with #400 wet sanding, end up #2000 and used couple types of polishing chemicals to shine the surface.. result is OK, not 100% happy with it, but definitely got better than before! No yellow so far. Strange thing is, when I put headlights back to the car, they didn't look clear as I saw in my room. Losing the shine minute by minute??
I think I still have to polish from inside.
Yes my wheels are still backwards..