z3v does have FM radio capability - follow these instructions to enter the service menu:
1.In your device, open the dialler and enter *#*#7378423#*#* to access the service menu.
2.Tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
but instead of going into service info, go to service tests, and select FM radio w/ headphones plugged in. You will hear the radio station and can set the frequency to whatever station you want. It may not be installed as an app by default but the capability is there.
Best.