I'm not highly experienced in removing scratches and marring from plastic parts such as the sidebag lids. I have used a product called Pro Honda Metal Polish and Finish Restorer. Unfortunately, this product doesn't have any effect. I also have a product called No. 7 Rubbing Compound which states that it shouldn't be used on clear coats, vinyl, metalized plastic trim, etc. so I haven't tried this one at all. My bike's finish is the Cabernet Red Metallic. Does anyone have successful experience in removing scratches and marring from these metalized plastic surfaces and, if yes, can they provide advice on the product and/or process they used?