Why did they stop putting antennas in the windshield? My mom had a car, if I recall correctly it was a red 2-door Chevy Monza (no idea what year, I'd venture to guess '79 or '80), with the antenna in the windshield. (The Monza was totalled in an accident when I was in 1st grade..a shame, because she bought a 1981 Plymouth Horizon to replace it and that thing had the most interesting problem--that nobody could fix--of only overheating on the highway. Evidentally someone figured it out, though, since she sold it to one of my dad's co-workers who managed to get it from Illinois to Virginia).
It was two fine wires that went up the middle of the windshield, spaced about 1/2" apart, and formed a T shape with the top part of the "T" at the top of the windshield. I remember asking my mom why that was in the windshield, and she told me that it was the radio antenna.