Audio Unit Removal/Installation

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
Remove the glove compartment. (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
Remove the decoration panel. (See DECORATION PANEL REMOVAL/INSTALLATION .)
Remove the bolt.

Fig 1: Audio Unit And Bolts With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Pull the audio unit in the order of arrows (1) and (2) shown in the figure, and detach clips A and B from the dashboard.

Fig 2: Identifying Audio Unit, Connector And Clips
Courtesy of MAZDA MOTORS CORP.
Disconnect the connectors.
Remove the audio unit.
Install in the reverse order of removal.