I use an iPhone 6 in my X, it's been quite annoying I had to turn bluetooth off sometimes. Everytime after I use the phone that would trigger phone to direct sound to car audio or finish a phone call, when it switches back to car audio, it goes really loud for a split second then comes back to where it was. It would go "loud" from like 3 to 6. It freaks my wife out. Anyone has problem with this?