Rear Door Speaker Inspection

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the rear door trim. (See REAR DOOR TRIM REMOVAL/INSTALLATION .)
Disconnect the rear door speaker connector. (See REAR DOOR SPEAKER REMOVAL/INSTALLATION .)
Verify that the resistance between the rear door speaker terminals is as indicated in the table.

Fig 1: Checking Resistance And Continuity Between Front Door Speaker Terminals
Courtesy of MAZDA MOTORS CORP.
- If not as indicated in the table, replace the rear door speaker.
Without Bose®

Fig 2: Rear Door Speaker Terminals Resistance Chart (Without Bose®)
Courtesy of MAZDA MOTORS CORP.

With Bose®

Fig 3: Rear Door Speaker Terminals Continuity Chart (With Bose®)
Courtesy of MAZDA MOTORS CORP.