Map/Dome Lamp Assembly Removal/Installation

Disconnect the negative battery cable.
Remove in order shown in Fig 1.
1. Lens
2. Bulb(s)
3. Map/dome lamp assembly
  
  Fig 1: Removing Map/Dome Lamp Assembly
  Courtesy of MAZDA MOTORS CORP.
Install in reverse order of removal.
Tightening torque

1.6 - 1.8 N.m {16.3 - 18.4 kgf.cm, 15 - 17 in.lbf}