Well when my wife calls, or is called when in her jeep Cherokee there is this noise . I think it sounds like horses mother in law says sounds like dogs barking. We tried different scenarios cruise control on/off traction control exe. It seems to get louder during turns and over speed bumps. We took it back to Massey Yardley Jeep, they said to wait a month for an update or some such. Perhaps no one else has either complained or is using an I phone.