Just though id post what id like to do but can't be done without chopping up the mounting spot for the stock radio cause my cb and aftermarket radio will not just slid in there.Also have to build some custom brackets to hold the radios into place,Then try to run the antenna wire so it would all be hidden,Also finding a good spot to place my magnet antenna on roof and running cable.I could do it and it would look good just too much work for something that wouldn't get used often and i am not into hacking S$$T up, Maybe if it was a beater or something.
Anyway i stole this pic off google images,not a 1st gen ford but i have the same exact cb radio and older jvc cd head unit would look great i think if i did this way