MB QUART JS1-316 User manual
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Assembly Instructions
Model: Jeep JL (Wrangler) & JT (Gladiator)
Description: Front Speaker Install
Part Number: JS1-316
Assembly Time: 120 Min (2-Hours)
Parts List
No. Component Name Qty
1 6.5in Midbass Lower Dash Speakers (JW1-116E) 2
2 6.5in Lower Dash Speaker Enclosure 2
3 3.5in Coaxial Speakers (JC1-108) 2
4 Speaker Harness 2
1 Bojo or Panel Tool
2 Philips Screwdriver
38, 10, 13mm Socket
4 Rachet
Parts List
Tools Required
Before you beign, read thought these instructions and check that
all parts are present. Please note that MB Quart cannot assume any
responsibility for damage resulting from incorrect installation.
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Dash Disassembly
● Unclip and remove panel below
the steering column
● Remove (2) Phillips screws
● Unclip, unplug, and remove the
climate control panel
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Dash Disassembly
● Remove (2) Phillips screws
securing the radio trim panel,
then unclip and remove
● Remove (1) Phillips screw
securing the front dash pad,
carefully unclip and remove by
pulling forward toward the front
seats
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Dash Disassembly
● Carefully unclip the instrument
panel shroud along the bottom
and remove
● Unclip the lower steering column
shroud and move toward steering
wheel
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Dash Disassembly
● Unclip and remove the panel on
the side of the dash
● Remove (5) Phillips screws that
are exposed
● Unclip kick panel cover
● Remove (1) Phillips screw from
lower left dash
● Remove (2) Phillips screws near
steering column
● Remove (2) Phillips screws on
the top of the left dash then unclip
and disconnect wiring on back of
light switch to remove panel from
vehicle
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Dash Disassembly
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Lower Speaker Removal
● Remove (4) 10mm bolts below
steering column. (one is hidden
behind the cross brace behind the
left down support)
● Remove (1) 8mm bolt below the
speaker and this will free the
lower support brace to aid in the
removal of the speaker enclosure
● Remove (3) Phillips screws
securing the speaker enclosure
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Lower Speaker Removal
● Disconnect harness from the
enclosure and module mounted
on the back side, then remove
from vehicle
● Remove the module from the
OEM enclosure
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Dash Disassembly
● Install the module on the new
enclosure using the OEM
hardware
● On passenger side remove
(4) Phillips screws
Dash Disassembly
● Unclip and remove the panel on
the side of the dash
● Using a panel tool carefully
remove the grab handle cover
(starting on the left)
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