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Acura MDX Subwoofer Replacement Guide
How to change or upgrade the Bose subwoofer speaker in a 1st generation 2001-2006 Acura MDX Touring SUV.

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2006 MDX Subwoofer
Small Notch - Left Side
Pry Out Speaker Cover
This automotive maintenance tutorial was specifically created to assist owners of the first generation (2001, 2002, 2003, 2004, 2005 & 2006) Acura MDX in changing a blown OEM Bose subwoofer speaker in the rear cargo area panel or upgrading it with an aftermarket speaker.

Owners of other Acura or Honda vehicles such as the RDX, ILX, TLX, RLX, TL, CL, RSX, RL, TSX, ZDX, NSX, Integra, Pilot, Accord, Civic, Fit, Clarity, CR-V, CR-Z, HR-V, Odyssey, Element  and Ridgeline may also find these DIY instructions to be helpful.

The tools needed to complete this procedure include a small plastic pry bar tool, an 8mm socket, an extension bar and a 1/4" drive ratchet.

The OEM Bose subwoofer speaker size is 25cm (9.84") and can be replaced with a shallow free air subwoofer speaker or a standard component speaker that is 8" or 10" in size.

Speaker Grille Removed
Old Subwoofer Exposed
Loosen Counterclockwise
The first two steps are to open the tailgate door to the cargo area and then move to the right (passenger) side.

Locate the small notch on the left (front) edge of the speaker cover.

Insert the blade of a small flathead screwdriver or a plastic pry bar tool into the notch.

Carefully pull out the speaker cover from the plastic cargo area panel.

Set the speaker grille aside in a safe place.

1st Bolt Removed
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Remove Other Bolts
Remove the four bolts that secure the subwoofer speaker in place by turning them counterclockwise with an 8mm socket, an extension bar and a 1/4" drive ratchet.
Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-010 Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-011
Four Bolts Removed
Pull Out Old Subwoofer
Set the four bolts aside in a safe place.

Carefully pull the old speaker out of the enclosure.

Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-013 Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-014 Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-015
You'll notice that the OEM Bose subwoofer isn't very deep, which is why the replacement needs to be an 8" or 10" sized shallow free air subwoofer.

The original speaker is Bose part number 39120-S3V-A61 (265263-001). It is 25 CM (centimeters) in size which is approximately 9.84" (inches).

You might also consider just installing an 8" or 10" component car speaker if you don't plan on upgrading the subwoofer amp. I've read that the OEM Bose subwoofer amp is only rated at about 35 watts of power.

The amplifier for the subwoofer is located inside the enclosure behind the speaker mounting ring.


Disconnect Positive Wire
Pull Off Negative Cable
Bose 39120-S3V-A61
Pull off the red "+" positive wire connector and the "-" negative / ground connector.

Push the connectors on to the terminals of the new speaker.

Install New Speaker
Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-020 Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-021
Replace Four Bolts
I was just inspecting the OEM speakers in our "new" used MDX. So I re-installed the original subwoofer.

In the future, I plan on removing the plastic cargo area panel and applying some Dynamat sound deadener to help stop any rattles or vibrations from the area around the sub when I crank up the volume and turn up the bass.

If you do need to drill holes for your new subwoofer, be sure to use a short drill bit so that you don't accidentally cause a dent or make a hole in the rear quarter panel.

Tighten Clockwise
Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-023 Acura-MDX-Bose-Subwoofer-Speaker-Replacement-Guide-024
Tighten the four bolts in the clockwise direction until they are snug.
Line Up Bottom Hooks
Push In Retaining Clips
Speaker Cover Replaced
Line up the two hooks on the bottom edge of the speaker cover with their corresponding slots on the cargo area panel.

Re-insert the hooks and then swing the speaker cover closed.

Push on the top of the speaker grille to secure the two metal retaining clips in place.

For more, please check out all of my 2001-2006 Acura MDX DIY Repair & Maintenance Guides.

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