If you buy the novus plastic polish kit you can use it to clean and polish out scratches. The cleaner spray allows you clean the panel and makes the panel more dust resistive. When using the cloths provided I'm able to clean mine without adding scratches. This product is almost created to clean side panels it does a great job.
I'm posting this not as an ad but to help people that have problems cleaning their side panels
I use toothpaste to remove scratches from acrylic and I clean it with micro fiber cloth used for glasses. I think everyone has some toothpaste at home and a micro fiber cloth.