I have a 2008 Aveo LS Sedan and I have no power to my radio. I checked all the fuses and they are fine. I pulled the radio out and checked the connections and they are connected correctly. The only thing I have done is take battery out to charge because the battery was completely dead. I received the car from my brother before he passed away. And was told that the radio has only worked once. Anybody have any ideas as what I can do?