I lost?? the shark fin antenna cover. I say lost because one day it was just missing. Hyundai wants almost $800 to replace because said they need to replace entire antenna. My radio still works there is no reason to replace. I just need the shark cover. I currently have a plastic bag taped to cover. Has this happened to anyone else? I have looked online and the covers are sold but just not certain what to buy. It is for 2016 Elantra. Can someone help?