Thought I'd post this. I know there are replacements like shorty antenna's or shark fins, but potentially for nothing, you can get rid of the antenna by taking it off. I did it for shits and giggles and to my surprise still get great reception in my area at least. Realizing that this may not be the case for everyone, but I'm taking it. Now Charmander doesn't look like a freaking RC car with that ugly antenna on top. And, if you're just using Sirius, you'll get that everywhere you go anyway (except tunnels, garages, bridges, etc).