[Graham Freeman]

I had a similar problem with an antenna for my 1934 cabriolet.
Originally there were 2 options, spare wheel or under the running board.
I decided on another way that has proved very successful.
I ran a soft multi strand copper plastic sheathed cable down from the radio and along inside the door sill and up to the top side of the wooden hood bows under the top material
The result is a completely hidden antenna and very efficient.