After my failed attempts mentioned in the second spoiler, I decided to use RAGEAT to compare CE's game.dat16 with the EFLC version to see what changes there were. I checked Vladivostok's Meta (RADIO_STATION_VLADIVOSTOK) and noticed that the EFLC version had fewer hex values than the IV version. These missing values showed up as pink on the CE version and upon hovering my cursor over them I realized that each set of 4 pink boxes refer to something radio related (the actual music, ads, etc.). Check the image for visual reference in the sub-spoiler below. See the actual Imgur post for slightly more detailed info if you want; but I'll explain the gist after the image: