With this lil' Asi-Script you can hear radio also onFoot... not only in vehicles.
Should work with all gameversions. No multiplayer support... for now.
Press [F12] to toggle the OnFootRadio.
Press [F9] to switch to your favorite radiostation, which you can define in a ini-file.
Press [F10] to freeze/unfreeze the current radiostation.
Press [Num+] to switch to next radiostation.
Press [Num-] to switch to previous radiostation.
(All keys can be defined in an ini-file.)
Have Fun!
o!nko!nk