I just bought my CX5 less than a year ago. It’s now making this ambulance siren sound, but very low volume and pitch. I think it happens constantly but it’s hard to hear when I’m driving because of the road noise but when I am stopped at a red light it’s very noticeable. It does not change with wind outside or anything external. I’ve tried turning the AC fan off as well as the AC button. That does not change anything either. Anybody have this issue?