Just purchased a 2019 GT1 last month and loving it. One thing I noticed however when radio is off and it's quiet in the cabin, there is a subtle crackling of the headliner. Kind of sounds like plastic expanding/contracting/popping. It's not really noticeable when you turn the radio on but has anyone else noticed this? Perhaps it's still so new that everything is "settling in" and may go away after time. No other rattles or squeaks, just this general plasticky headliner weird sound that is not isolated to one spot.