WARNING: This page is about a different car, the 2016 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Front Room/Map Lamp Assembly Components
Courtesy of NISSAN NORTH AMERICA, INC.
1.
Headlining
2.
Front Room/Map Lamp Assembly Bracket (Without Panoramic Roof Glass)
3.
Front Room/Map Lamp Assembly Bracket (With Panoramic Roof Glass)