MB QUART JC1-116E User manual

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Assembly Instructions
Model: Jeep JL (Wrangler) & JT (Gladiator)
Description: Front Speaker Install
Part Number: JC1-116E & JW1-116E
Assembly Time: 120 Min (2-Hours)
Parts List
No. Component Name Qty
1 6.5in Coaxial Lower Dash Speakers 2
2 6.5in Lower Dash Speaker Enclosure 2
4 Speaker Harness 2
Parts List
No. Component Name Qty
1 6.5in Midbass Lower Dash Speakers 2
2 6.5in Lower Dash Speaker Enclosure 2
4 Speaker Harness 2
1 Bojo or Panel Tool
2 Philips Screwdriver
38, 10, 13mm Socket
4 Rachet
JC1-116E Parts List
JW1-116E 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

Page 3 of 28
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

Page 4 of 28
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
Page 6 of 28
Dash Disassembly

Page 7 of 28
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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Dash Disassembly
● Remove (2) 10mm bolts securing
the grab handle and set handle
aside
● Unclip the airbag cover panel
● Remove (2) Phillips screws that
have been exposed
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Dash Disassembly
● Remove glove box by opening
and lifting the upper tab and
removing the latch on the left side
● Remove three Phillips screws
that have been exposed
● Looking in the glovebox cavity
up high, remove two 13mm
bolts securing the back of the
passenger side airbag
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Dash Disassembly
● Carefully unclip the air bag. (this
does NOT need to be removed
from the vehicle)
● Lifting the airbag slightly will
expose (5) Phillips screws that
need to be removed
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Dash Disassembly
● Remove (3) Phillips screws
holding the passenger speaker
enclosure, then disconnect wires
and remove from vehicle
Page 14 of 28

Upper Speaker Replacement
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● Connect the speaker enclosure
to the wiring
Note – If just replacing the pods,
but not adding ampliers, then
you will connect to OEM plug,
but if you are adding ampliers,
then you will connect to the new
harness.
Also, if replacing the upper dash
speaker, then pass the other
harness from pod up to top
dash location
● Install new speaker enclosure and
secure with (3) Phillips screws

Upper Speaker Replacement
● Lifting the airbag slightly and
install (5) Phillips screws
● Remove (2) Phillips screws,
disconnect wiring and remove
speaker from vehicle
● Carefully clip the airbag into place
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Upper Speaker Replacement
● Looking in the glovebox cavity
up high, install (2) 13mm
bolts securing the back of the
passenger side airbag
● Install (3) Phillips screws at
bottom of glovebox opening
● Install glovebox by installing
bottom hinge and pivoting up.
(Also install left side gear arm)
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Upper Speaker Replacement
● Install (2) Phillips screw at the
bottom of the passenger airbag
● Clip the airbag cover panel into
place
● Install (2) 10mm bolts securing
the grab handle
Page 18 of 28

Upper Speaker Replacement
● Slide ears on cover into slot and
snap grab handle cover into place
● Install (5) Phillips screws on the
side of dash
● Clip the passenger side dash
cover into place
Page 19 of 28

Upper Speaker Replacement
● Install (4) Phillips screws on the
top of the air bag
Page 20 of 28
● Connect the speaker enclosure
to the wiring
Note – If just replacing the pods,
but not adding ampliers, then
you will connect to OEM plug,
but if you are adding ampliers,
then you will connect to the new
harness.
Also, if replacing the upper dash
speaker, then pass the other
harness from pod up to top
dash location