Vehicles Without Auto Light/Wiper System

Push the wire in the direction of the arrow shown in the illustration.
Insert a flathead screwdriver between the rearview mirror and base.

Fig 1: Identifying Wire Pushing Direction
Courtesy of MAZDA MOTORS CORP.
Insert a tape-wrapped flathead screwdriver to the position shown in the illustration and press the center part of the spring.

Fig 2: Pressing Center Part Of Spring
Courtesy of MAZDA MOTORS CORP.
Pull out the rearview mirror toward the vehicle rear.

Fig 3: Pulling Out Rearview Mirror Toward Vehicle Rear
Courtesy of MAZDA MOTORS CORP.