Hello guys,

I'm installing a new radio on my Punto and I'm having some trouble with the USB player.
The aftermarket radio is sold for Punto in Europe and everything works fine there.
I'm from Brazil and I'm trying to use here. However, it may have some differences regarding the b&m system.
There is an interesting use case:
- UBS formatted and with only mp3 file
- Try to play from the USB (nothing happens)
- Press "Windows" button (girl's voice is played)
- In the very end of the space used by the girl's voice, I can hear for less than a second the music.

It seems that when I try to play the USB it is not activating the right "channel", that should be the same as the b&m girl's voice. That's why I can hear the music for a little time in the end of girl's voice record.
Am I talking non-sense here?
Is there anyway to find out what's happening?
Does anyone know how the USB and b&m works in that case?

Thanks!