I was reading on the Concours Mustang FB page how the radio antenna was shipped in the trunk, in a brown paper bag, to be installed by the dealer. A template was also included to use to drill the hole in the fender. I assume this was done the same way on the 67-73 Cougars. The bigger question is.... how did that cable get routed and put into the wiring loom on the lower dash and into the back of the radio without removing the fender and the dash pad?