2014 Traverse 3.6L LS Bad Radio Static

My 2014 Traverse LS has recently developed Bad Radio Static. It is intermittent and is so bad that you cannot hear any Radio Station when it is on the Blink. When it does work, it works and sounds great. I have the Shark Fin style antenna, and tried the cheap fix by replacing the 8" Rubber Mast, as it seemed to have stripped out. (I think someone tried to steal it and twisted it too far). But the new mast didn't solve the problem. For what it's worth, the CD Player works great with no problems. I don't know if the Shark Fin antenna Base can go bad. Anyone have a similar issue? Any Help would be appreciated.