Hello, It is nice to have you here. I am sorry to learn of the issues you have been having with the radio in your Chevy Traverse. The FM antenna or the wiring that connects it to the radio may be the cause of the problem. Interference from nearby radio signals or other electronic devices is another possibility. If you haven't already, check the connections and wiring to see if there are any obvious problems. If not, take it to a professional for more information on how to fix it. I wish you luck.