65 Dart Antenna

My fender tag says my car came with an AM radio, but the hole was never drilled. Instead my radio antenna was mounted on the rear passenger quarter panel. I read somewhere that antennas were dealer installed, which seems crazy to me, but is supported by my car.

Anyways, there is a bulge in the passenger side of the cowl midway between the door hinges. There is a dimple in the center of this bulge where the whole would be drilled for the antenna wire. You should be able to see it if you remove the rear splash shield.