05' T&C Radio?DVD no sound
 

I just got a 05' T&C and the radio/DVD has no sound. They both work. I can watch movies and see the radio stations but there is just not sound coming out of the speakers. Someone told me there is a switch by the driver the switches the radio to dvd that must be on or off. I can't find any switch am I blind or is just no right??? Any other ideas?

Thanks,
rsanborn