Radios ……. I don’t know how it is in your neck of the woods but here in central Oklahoma, the communication radios are not mounted in the dash. They are mounted along with the siren box and toggle switch panel in brackets, either shop made or purchased from emergency equipment suppliers. These brackets were mounted from the floor, bottom of the dash or overhead depending on the Department’s preference. The holes in your dash may have been for a standard factory radio or a creative installation of the service radio. Firetrucks, especially those owned by smaller departments had very creative ways to mount all sorts of equipment, usually done by the firemen themselves.