How do I take it out from my taillight lense? It's dried up pretty hard. What do you think is the best way to take it out?

Thanks

 

Well this is what i used for the door panel on paint so i assume it works the same....

Use Mopar Super Kleen.........

It's a Bug, Tar & Spot remover.......Damp a cloth with it and rub the area where the residue is.....may take a while to loosen all of it, but it works wonders.....