MB QUART MBQJL-SUBR-1 User manual

Page 1 of 17
Assembly Instructions
Model: Wrangler (JL)
Description: Jeep Wrangler OEM Subwoofer Upgrade Kit Installation
Part Number: MBQJL-SUBR-1
Assembly Time: 60 Minutes (1 Hour)
Tools Required
1T20 & T30 Torx Driver
25mm Allen Wrench
3Pry Tool
4 Utility Knife
Parts List
No. Component Name Qty
1 Subwoofer 1
2 MB Quart Grill Emblem 1
3 Poly Fill Sheets 2
Before you begin, read though these instructions and check that all
parts are present. Please note that MB Quart cannot assume any
responsibility for damage resulting from incorrect installation.

Page 2 of 17
Disassembly
● Remove jack cover panel

Page 3 of 17
Disassembly
● Remove three tie down hooks
with T30 Torx Driver and remove
● *For Wrangler 4XE lift up the
panel behind rear seat and
remove*

Page 4 of 17
Disassembly
● Remove T20 Torx screw from the
front side of the subwoofer panel
● Pop the rear seatbelt cover panel
up and pry subwoofer enclosure
off the rear quarter panel

Page 5 of 17
Disassembly
● Disconnect the subwoofer
enclosure wire harness
● Remove the T20 Torx screw
from the rear of the subwoofer
enclosure
● Remove the eight 5mm allen
screws from the perimeter of the
subwoofer

Page 6 of 17
Disassembly
● Gently pry up the OEM grill from
the subwoofer frame
● Remove and disconnect the
subwoofer.

Page 7 of 17
Disassembly
● Gently remove the original
emblem from the front of the
OEM grill
● Remove the OEM subwoofer
wiring and grommet from the
enclosure

Page 8 of 17
Installation
● Install provided wiring harness
and grommet into the enclosure

Page 9 of 17
Installation
into the enclosure while keeping
the screw hole clear

Page 10 of 17
Installation
● Cut and remove eight plastic tabs
on enclosure using a utility knife