Mazda CX-9 Grand Touring 2009 Manual page 1516

Courtesy of MAZDA MOTORS CORP.
4. Install in the reverse order of removal.
REAR SPEAKER INSPECTION
1. Verify the resistance between rear speaker terminals.
If the resistance is not within the specification, replace the rear speaker.
Resistance 3.6 ohms
2. Connect a 1.5 V battery to the rear speaker and verify that noise is heard from the rear speaker.
If no noise is heard, replace the rear speaker.
Fig. 23: Identifying Rear Speaker Terminals
Courtesy of MAZDA MOTORS CORP.
ROOF SPEAKER REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the RES unit cover. (See RES UNIT REMOVAL/INSTALLATION.)
3. Remove in the order indicated in the table.
Fig. 24: Identifying Roof Speaker Components
Courtesy of MAZDA MOTORS CORP.
4. Install in the reverse order of removal.
2008 Mazda CX-9 Grand Touring
2008 BODY & ACCESSORIES Entertainment - Mazda CX-9