For the heck of it I drive another Pacifica today to see if the interior noise is identical to what I hear on mine. Sure enough it is and itís the same area behind my head and to the left. So Iím gonna say itís just thin glass on the sliding doors. Makes me feel better that itís normal and again itís not loud, just louder than I have been used to in other cars.
2017 Cadillac ATS 3.6 awd Premium, Phantom Gray, Carbon Black package, Recaros
2017 Pacifica Limited, bright white, black/deep mocha, AST, blu-ray, 20Ē wheels, HK audio