Modular Audio - Upper Module Removal and Installation: Notes

Disconnect the battery cables. For additional information, refer to BATTERY DISCONNECT .
Remove the audio unit. For additional information, refer to AUDIO UNIT
Remove in the order indicated in the figure.

Fig 1: Modular Audio Removing Procedure And Removing Order Chart (Upper Module)
Courtesy of MAZDA MOTORS CORP.
To install, reverse the removal procedure