I did something like that every time a GTA game was released on PC, but it became too time consuming as the quality of the radio shows kept increasing. I don't wanna release crap as a radio show, so a few songs had to suffice.
Phusion FM for GTA3
GTAGaming Radio 2003 for GTA3
GTAGaming Radio 2004 for Vice City
Back-Talk Radio for San Andreas
Each were an hour to 90 minutes I believe.
Yep. Those were the days!