shaggyboiler

I recently got one and have it hooked up and running in the car. I have a XM modual and a BT both. The problem is I get no sound from XM or BT. The XM I get the the stations to come up with what is playing but I get no sound. The BT paired with my phone fine and when I make a call they can here me though the speaker but I get no sound though the speakes. Any ideas where to trouble shoot this at all? Its odd only thing would be sound I don't get.