Discussion Starter · #1 ·
I have the blade type roof antenna, and I just ordered the Shark Fin, like the models after mine. I read through another post, that the blade unscrews. I was just wondering what the blade does? I turned on the radio without, and the radio works on FM/ the XM works/, the only thing I'm thinking, is that it has something to do with Onstar, or the phone? I bought a cover with a wire in it for attaching to the base of the antenna. I like the looks of the fin, and I bought one i silver to replace the black one.