5 door

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Remove the trunk end trim. (See TRUNK END TRIM REMOVAL/INSTALLATION .)
Remove in the order indicated.

Fig 1: Child-Restraint Seat Anchor Removal Sequence (5 Door) With Torque Specifications
Courtesy of MAZDA MOTORS CORP.

Fig 2: Child-Restraint Seat Anchor Removal Sequence Legend (5 Door)
Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal.