You don't need to take apart the whole front dash to access the antenna wire. I didn't want to touch my air bag so I just disconnected the wire from the stereo, and slowly pulled it all the way through the front dash from the wheel well lining. It got stuck on something inside, but we finally managed to pull it through. Then we just put the new antenna in and put the wire through the dash. All we really had to do was loosen the glove box to make it lower and take apart he middle dash to access the stereo. No need to take apart the whole front.

Just my experience.