JL Audio Stealthbox 94451, Stealthbox SB-F-FLX/10W3v3 Installation Manual
I N S T A L L A T I O N G U I D E
for th e
SB-F-FLX/10W3v3
SKU#94451
2009+
Thank you for choosing a JL Audio Stealthbox® for your automotive sound system. With proper
installation, your new vehicle-specific enclosed subwoofer system will deliver years of listening pleasure.
We strongly recommend that you have your new Stealthbox® installed by your authorized JL Audio
dealer. The installation professionals employed by your dealer have the necessary tools and experience
to disassemble and reassemble your vehicle properly. Also, keep in mind that your warranty coverage
extends to 2 years if your system is installed or approved by your authorized JL Audio dealer. If you
prefer to perform your own installation, please read this installation guide completely
before beginning the process.
If you choose to perform the installation yourself, it is absolutely vital that
the Stealthbox
®
be properly mounted to the vehicle according to these
instructions. Failure to mount the enclosure properly presents two problems:
1) The sub-bass performance will suffer due to the movement of the enclosure
caused by the force exerted by the woofer(s).
2) A loose enclosure presents a serious safety hazard in the event of a collision
or sudden deceleration.
S T E P 1
Start off by cleaning out the back of the vehicle, it’s always
better to work in a clean environment.
Continued on Next Page
S T E P 2
Remove the passengers side rear door sill.
S T E P 3
Remove the false floor and, the tailgate door sill.
SB-F-FLX-10W3v3 INSTR_SKU# 011293
INS TALLATIO N
D I F F I C U LT Y :
35
OU T
OF
EST IMATED TIME:
23 HO URS
Continued on Next Page
SB-F-FLX-10W3v3 INSTR_SKU# 011293
S T E P 7
Using a Die grinder (or a Dremel® type tool), grind off all of
the plastic welds as shown.
***CAUTION***
Always follow proper safety techniques when using
power tools as described by the tool manufacturer.
S T E P 6
The factory subwoofer grille (as shown) needs to be
removed, this process will be completed namely from the
back side of the panel.
S T E P 5
Remove the OEM subwoofer/amplifier as shown. Run the
wire for the Stealthbox® to this general location (indicated by
arrow) as the Stealthbox® will be mounted here, leave extra
wire so that you can secure it as desired once the installation
is finished.
S T E P 4
Remove the interior plastic trim panel, you can leave the
sections of the panel that the seatbelts go through as
shown.
Page 2 • JL Audio, Inc 2009
S T E P 9
Looking at the panel from the front, trim all of the edges
of the opening so that on the sides and bottom, there is a
flange inside the recess where the grille was that is 1” wide
and at the top, the flange should be approximately 3/8” wide
as shown.
S T E P 1 1
Remove the woofer and, stuffing from the Stealthbox, slide
the Stealthbox® into position, mark the two mounting holes
as shown, remove the enclosure.
S T E P 1 0
Re-install the interior panel along with all of the previously
removed panels. Make sure that you can access the previously run wire for the Stealthbox®.
S T E P 8
This is the back of the grille completely removed showing all
of the welds that needed to be removed.
3/8”
1”
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