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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

1

T20 & T30 Torx Driver

2

5mm Allen Wrench

3

Pry 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. 

Summary of Contents for MBQJL-SUBR-1

Page 1: ...our Tools Required 1 T20 T30 Torx Driver 2 5mm Allen Wrench 3 Pry 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: ...Page 2 of 17 Disassembly Remove jack cover panel ...

Page 3: ...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: ...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: ... 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: ...Page 6 of 17 Disassembly Gently pry up the OEM grill from the subwoofer frame Remove and disconnect the subwoofer ...

Page 7: ...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: ...Page 8 of 17 Installation Install provided wiring harness and grommet into the enclosure ...

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

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

Page 11: ...Page 11 of 17 Installation Connect the subwoofer to the wire harness NOTE Red to Positive and Black to Negative ...

Page 12: ...Page 12 of 17 Installation Install MB Quart subwoofer Install the OEM T20 Torx screw to the rear of the enclosure ...

Page 13: ...Page 13 of 17 Installation Install the new MB Quart emblem onto the grill attach the grill and trim ring reusing the eight 5mm allen screws Place the subwoofer enclosure into the vehicle ...

Page 14: ...the MBQJ STG6 A 1 this will be under your passenger seat Recommended amplifier crossover and gain settings with the MBQJ STG6 A 1 kit are Gain turned up to the 1 O clock position LPF turned up to the 2 O clock position Subsonic turned up to the 9 O clock position ...

Page 15: ...Page 15 of 17 Installation Reinstall the subwoofer enclosure into the quarter panel area and place the seat belt cover back in place Reinstall T20 Torx screw to the front of the enclosure ...

Page 16: ...Page 16 of 17 Installation tie down hooks with T30 Torx screws For Wrangler 4XE install the panel behind rear seat ...

Page 17: ...Page 17 of 17 Installation Install jack cover your MB Quart Subwoofer Upgrade MBQJL SUBR 1 REV 01 ...

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