With rear vent duct

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Remove the following parts:
1. Shift lever knob (MTX) (See appropriate service information.)
2. Selector lever knob (ATX) (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION .)
3. Upper panel (See UPPER PANEL REMOVAL/INSTALLATION .)
4. Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION .)
5. Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION .)
6. Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION .)
7. Cup holder (See CUP HOLDER REMOVAL/INSTALLATION .)
8. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
9. Rear console (See REAR CONSOLE REMOVAL/INSTALLATION (US) .)
10. Rear vent duct No. 2 (See REAR VENT DUCT REMOVAL/INSTALLATION .)
Disconnect the connector.

Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Disconnect the connector while holding the keyless antenna, otherwise the keyless antenna bracket could be damaged.
While pressing the keyless antenna bracket tab in the direction of arrow (1) shown in the illustration, press it in the direction of arrow (2) to detach the keyless antenna bracket tab from the bracket.

Courtesy of MAZDA MOTORS CORP.
Remove the keyless antenna from the bracket.
Insert a tape-wrapped flathead screwdriver into the position shown in the illustration.

Courtesy of MAZDA MOTORS CORP.
Move the tape-wrapped flathead screwdriver in the direction of arrow (1) shown in the illustration to press the keyless antenna bracket tab, and pull it in the direction of arrow (2) to detach the keyless antenna bracket from the keyless antenna.
Remove the keyless antenna bracket from the keyless antenna.
Install in the reverse order of removal.