On many occasions, I will be talking on my phone over the entertainment system while driving when an obnoxious reverberating sound loudly overtakes the conversation. It truly sounds like a helicopter. The only way to make it stop is to hang up and call back. Sometimes it does it again in a matter of seconds. Sometimes it is good for a while. The shame of all the problems I have encountered, I really love the truck. I had a 2005 Titan that was bullet proof.