WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
2.5 cm (1 in) speakers are installed in the front side middle of the rear doors.
Courtesy of NISSAN NORTH AMERICA, INC.
Sound signals generated by the audio amp. output high range sounds.