To use the Evo V 4G built-in FM radio, you have to download an apk app file from Phandroid which you can find by Googling “Evo V 4G FM radio apk”. Creating an account may be necessary on Phandroid… Once you have the file from the site, install AndroZip from the Play Store. Run AndroZip, navigate to the Downloads folder on your Evo V 4G, press the file, and choose Install.
The radio will only work if you have earphones or a stereo 3.5mm patch cable plugged in as an antenna. Enjoy!