S T E P 1 7
Back out the socket cup set screws so 1 1/4-inch of threads
are exposed.
Place the Stealthbox® into position by guiding the socket cup
set screws through the holes drilled.
If your SUV does not have the factory air compressor, please
go directly to STEP 20.
SUVs with the air compressor only.
S T E P 1 9
Mount the air compressor back into position.
S T E P 1 8
From under the vehicle, place the supplied fender washers,
flat washers, lock washers and then hex nuts onto each
protruding socket cup set screw and secure. Adjust the
amount of exposed thread on each cup set screw if necessary
keeping in mind that leaving too much exposed tread will
prevent the re-installation of the air compressor and or the
plastic wheel well liner.
Note: For added protection, it is recommended that
you apply a bead of silicone between the vehicle
and the fender washer. After the bolt assembly is
tightly secured, it is also recommended that vehicle
under-coating material is applied to the exposed
Continued on Next Page
SB-GM-TRLBLZR/10W3v3_INSTR_SKU#011184
S T E P 1 5
Note: Before drilling, make sure that you are not
going to be drilling into any gas lines, brake lines,
transmission lines, electrical wiring, transfer case
(4x4 vehicles) or anything else that might cause
a reduction in your weekly pay. Always wear eye
protection when drilling!
With a drill and a 1/2-inch drill bit, drill through the
impression made in the wax square and into the vehicle’s
wheel well.
S T E P 1 4
Thread the supplied pair of socket cup set screws into
the bottom of the Stealthbox®
, leaving 1/2-inch of thread
exposed. Position the Stealthbox ® in the mounting location
and press down on it firmly.
Remove the Stealthbox® carefully, leaving the wax squares
in place. The socket cup set screws will leave impressions in
the wax.
S T E P 1 3
Place one of the supplied wax squares, so the side of the
wax square is flush against the plastic side panel and the
middle of the wax square measures 7-inches from the front
protrusion of the side plastic panel.
Not pictured. Place the second supplied wax square, so the
side of the wax square is flush against the plastic side panel
and the middle of the wax square measures 7-inches from
the rear of the wheel well to the back of the SUV.
S T E P 1 2
Use a hand held rotary tool (Dremel®) with cutting bit, to cut
out the side panel for the compressor switch panel.
Remember the hole for the hose nozzle.
S T E P 1 6
Run speaker wire from the amplifier location to the
Stealthbox® location and check for proper operation of
the woofer.
Page 2 • JL Audio, Inc 2016
7-inches