I have a 2002 XJ8 Vanden Plas. It used to have a hard-wired cell phone and the base for the curly antenna is still in the back window. Any chance that could be used for satellite radio? If not, can it be used for anything at all? If it's useless then I'd like to have the whole thing removed but I'm not sure if the patch for the hole in the back window will look worse than what I have now.