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SB-FIAT-500/10TW3 INSTR_SKU# 011366
Page 3 • JL Audio, Inc., 2016
STEP 4
Slide a U-Nut over the brace and align it with the hole drilled
in the previous step. Thread a 3/8 - 16 x 2-1/4” into the U-Nut,
leaving about 1-1/4” exposed as shown.
STEP 8
Reinstall the subwoofer.
STEP 3
Measure and mark the center of the brace between the two
factory holes. Drill a 9/16” hole on the mark.
Before drilling, always make sure that you are not
going to be drilling into any gas lines, brake lines,
tires, transmission lines, electrical wiring, exhaust
systems or anything else that might cause a reduction
in your weekly pay.
Always wear eye protection when drilling!
STEP 7
Slide a 3/8” Fender Washer, a 3/8” Lock Washer, and a 3/8 -
16 Hex Nut over the 3/8 - 16 x 2-1/4” Set Screw, and firmly
tighten. Route the speaker cable as necessary.
STEP 2
Carefully unclip the rear sill panel, and remove the panel.
For Hatchback Models: Remove shelf and Phillips head
screw below the shelf.
For Convertible Models: Unclip the carpet from the under
the rear deck.
Pull back the trunk liner and locate the brace.
STEP 6
Attach speaker cable to the terminal cup on the Stealthbox®,
and place it back into position in the trunk, allowing the 3/8 -
16 x 2-1/4” Set Screw to pass through the hole in the back of
the enclosure.
STEP 1
Empty out the trunk of the vehicle. Remove the woofer from
the Stealthbox® and place the enclosure into position in the
trunk. Mark the trunk liner through the hole in the back of
the enclosure. Remove the enclosure, and cut an “X” on the
mark.
STEP 5
Reinstall the trunk liner, allowing the 3/8 - 16 x 2-1/4” Set
Screw to pass through the cut made in Step 1. Reinstall the
other trunk parts.
