I asked my dealer how much for the OEM shark fin antenna and he said that the price is ridiculus like $300... Then I searched online and found it for $60 shipped to my door.. does anyone has bought the antenna from the dealer and if yes, how much they asked?? 300 seems like insane...
If the above post is true, you could get a fake one from eBay for less than $20, since you don't need a functional one (unless you have sat radio, of course, but then your car would've already come with a sharkfin).