You can use 50/50 mix of Isopropyl Alcohol and water(distilled preferred but not necessary) or use Acryl-Safe cleaner/solvent you can buy this at an auto parts store. Make sure it's safe for plastic/rubber etc don't use prep-sol on rubber. Alternatively, try smooth peanut butter or Avon Skin So Soft. I have even used WD-40 on a rag.

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2013 BMW X6M-current
2013 Audi S4-current
2007 BMW X5 4.8i (E70)-sold