 After an audition process , Ned Luke , Shawn Fonteno and Steven Ogg were selected to portray Michael , Franklin and Trevor , respectively . Their performances were mostly recorded using motion capture technology , but dialogue for scenes with characters seated in vehicles was recorded in studios instead . The game is the first in its series to feature an original score , composed by a team of producers collaborating with each other over several years . Licensed music provided by an in @-@ game radio is also used . The team licensed more than 241 tracks shared between fifteen radio stations , with an additional two stations providing talk radio . Some of the tracks were written specifically for the game , such as rapper and producer Flying Lotus 's original work composed for the FlyLo FM radio station he hosts . 
