@bruce66667 this "speaker works great" combined with that "cutting in and out then stops" leads me to believe that this is a power board issue. Possibly a bad MOSFET or other component. Open it up and take a look at the power board [guide|19684] for any discolored, odd looking component etc. Post some good pictures of it with your Question. That way we can see what you see. [guide|21499]