Marr (Don't worry, you're not supposed to know him) has put together a radio sound pack, replacing all the current radio sounds. Here's what he had to say about it...
This pack replaces all radio sound files, and includes a file that updates the in-game menus to reflect the minor changes to the wording. The basic meaning of every radio sound is still the same, of course. I went for a style that reflects a more gung-ho, radio-chatter style. The readme file contains easy-to-follow installation instructions.Wow! Are you excited as I am, how about your children? Download it all HERE!