Bass-Box Removal/Installation

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the trunk covering. (See TRUNK COVERING REMOVAL/INSTALLATION .)
Remove the bolt.

Fig 1: Bass-Box Bolts With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Disconnect the connector.
Remove the bass-box and short cord as a single unit.
Remove the wiring harness clip.

Courtesy of MAZDA MOTORS CORP.
Remove the short-cord from the bass-box.
Install in the reverse order of removal.