73 mercury cougar convertible antenna

I purchased a 73 mercury, cougar convertible. It did not have an antenna now I do have an antenna and I see that it mounts on the fender, but is there a hole through the cow or through the fender it goes into the dash any help will be appreciated. Thank you.

Everything that can be done to an antenna is done with the fender in place. The cars were shipped new to the dealer with instructions on how to drill the hole in the fender and how to install the antenna.

You can do it - you are better than the high school kids the dealer used to install those antennas on new Cougars back then.

Antenna installed