Got my replacement head unit today ($19.95 off the 'bay! ) and I wasn't aware at how many features didn't work on the old one! Stations are better, but still not up to snuff, especially for a 3 year old car.

Pretty easy to install the head unit! I bet it took four whole minutes to swap them out!

So, I'm back to my antenna question. Can this AM/FM/Sirius antenna be replaced from the outside, or must I drop the headliner?