de-solv-it. it is the best product i've ever found to remove sticky stuff, gunk, grease etc from all sorts of things around the house. It is also natural and safe for clear coats. The contractors version is a bit stronger. I have used it to remove glue from emblems. They sell it at Ace hardware typically.
https://www.amazon.com/Orange-Sol-So.../dp/B000P0MJRC