have 07 gmc duramax. have xm radio so do not listen to am/fm. tried other day and do not have any reception on am or fm. anyone else have this problem. thanks

I have a 00 Silverado with a radio with that problem... Would bring in 3 AM stations and no FM stations. But I doubt my problem would be the same as yours. Make sure the antenna is plugged in properly. Moving the electrical.