Polishing red rear lights?

[V12]

I have a couple of rear lights that look terrible. One of them is almost white, looks like it's clouded over. I guess this is caused by UV damage?

Where should I start with getting them back to clear red?

 

[Dieselman]

If they are scratched just sand and polish them, if they are bleached, you will need to spray them with translucent light paint.

 

[jamesfuller]

I have some red tint spray on order, should be here any day now. Will let you know how it turns out.

 

[JDMUK]

Sand them first, 800-3000 grit wet and dry then run a polisher over them, then seal with some clear lacquer

 

[mikec32]

Wet sand and polish with a wool pad and a good compound that has lots of play in it, like menzerna 400. I seal lights with Gtechniq Crystal Serum as it's outrageously strong and durable.