65 Dart Radio Antenna Location

Found this post on another thread:

Antenna mounting was part of predelivery service at the dealership.
http://www.forabodiesonly.com/mopar/showpost.php?p=1969806465&postcount=6

Seems hard to believe that the factory would leave such a risky and labor intensive process to the dealership!

Could this explain my car? The fender tag says it came with a radio, but there is no hole in the fender and no hole for the antenna wire behind the kick panel. Could the dealer have decided to put the antenna in the rear instead?