1. Disconnect the negative battery cable..
2. Remove the side speaker grille..
3. Remove the tweeter..
4. Verify that the resistance between the tweeter terminals is as indicated in the table.

If not as indicated in the table, replace the tweeter.
Without Bose®

With Bose®

Supplier Identification Procedure [Audio]
Tweeter Removal/InstallationShift And Select Mechanism [C66 M R]
Purpose, Function
The shift and select mechanism moves the shift fork to change gears according
to the operation of the shift lever in the cabin.
Construction
Shift control module
The moving parts of the shift control module are vertically positioned..
In th ...
Cruise Control System
Outline
Enables driving at a constant speed by setting the vehicle speed with the
cruise control switch instead of operating the accelerator pedal.
The PCM controls the throttle valve actuator to maintain the vehicle at a
constant speed.
Component and function
...
Sae Standards
In accordance with new regulations, SAE (Society of Automotive Engineers)
standard names and abbreviations are now used in this manual. The table below
lists the names and abbreviations that have been used in Mazda manuals up to
now and their SAE equivalents.
...