Jeep Wrangler
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Jeep Wrangler
PSS-24WRA
Installation Manual
Model: Wrangler JL 2018-Up
Model: Gladiator JT 2020-Up
Introduction
Congratulations on purchasing the PSS-24WRA. This installation manual is designed to take you through
the step-by-step installation of PSS-24WRA into a 2018-Up Jeep Wrangler JL or Jeep Gladiator JT 2020-Up.
Please familiarize yourself with the owners manual as this is a challenging installation. If you still have
additional questions please call 1-800-TECH-101.
Note
Design and specifications are subject to change without notice for improvement.
To Ensure Safe Use, Always Follow These Precautions
The installation of this product requires specialized skills and experience. This is an installation that is
challenging and time consuming even for installers with experience. A professional installer would typically
take a minimum of 4-5 hours to complete this installation. We recommend that you have the product installed
by an Alpine authorized dealer.
Before you use this product, be sure to carefully read this installation manual and the separate user’s manual
so that you can use the product correctly. Alpine Electronics bears no responsibility for problems that arise as
a result of failure to follow the instructions in the manuals.
This manual includes a number of symbols that are intended to help you use the product safely, to prevent
harm to you and others, and to protect against damage to property. These symbols and their meanings are
listed below.
Make sure you fully understand these symbols before you begin reading the main text.
Explanations of Injury and Damage That May Result from Incorrect Use
Warning
Ignoring the content marked by this indication and using the product incorrectly is
expected to lead to death or serious injury.
Caution
Ignoring the content marked by this indication and using the product incorrectly is only
expected to lead to injury or property damage.
Jeep
Model Year
Wrangler JL** 2018 – Up
Gladiator JT** 2020 – Up
** The specified vehicles have been tested and have met compatibility specs at the time of testing. Compatibility is
not guaranteed if the manufacturer has made production changes to the listed vehicles above.
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Types of Precautions
Forbidden
Indicates actions that are
forbidden (must not be performed)
Forbidden
Indicates that disassembly is
forbidden.
Mandatory
Indicates actions that are
mandatory (must be performed)
Marks content that should receive
your full attention.
Warning
Do not disassemble or modify the product. Doing
so could lead to an accident, fire, or electric
shock.
Store screws and other small objects where
children cannot reach them. If one of those small
objects is swallowed, consult with a doctor
immediately.
When replacing fuses be sure to use the
fuses with the specified current rating.
Failing to do so could lead to an accident
or fire.
Only connect the product to a 12 VDC negative
ground car. Failing to do so could lead to an
accident or fire.
Since this vehicle has two batteries,
disconnecting the battery is not a good option.
Take caution when testing circuits. Failing to do
so could lead to electric shock or injury.
Do not cut the insulation on a cord and take power
from another device. Doing so could lead to fire or
electric shock.
Do not install the product in a location where it
willl obstruct the driver’s forward view; interfere
with the operation of the steering wheel, gear
shift, or the like; or pose a threat to passengers.
Doing so could lead to an accident or injury.
When making a hole in the vehicle body, be careful
to avoid damaging pipes, the fuel tank, electrical
wiring, and the like. This kind of damage could
lead to an accident or fire.
When installing and grounding the product, do not
use any of the bolts or nuts of the steering wheel,
brakes, fuel tank, or the like. Doing so could make
the brakes stop working or could lead to fire.
Do not install the product near the passengerside
airbag. Doing so could interfere with the operation
of the airbag and lead to an accident or injury.
Bundle cords so that they don’t interfere with
driving. Wrapping cords around the steering
wheel, gearshift, brake pedal, or the like could
lead to an accident or damage equipment.
Caution
Connect the product properly according to the
instructions. Failing to do so could lead to fire or
an accident.
Do not sandwich cords between the seat railing or
allow them to touch protrusions. Resulting breaks
or shorts could lead to electric shock or fire.
Do not block vents or heat sinks. Doing so could
lead to fire or damage equipment.
Use the accessories according to the instructions,
and attach them securely. Failing to do so could
lead to an accident or damage equipment.
Do not install the product where it may be
exposed to water or in a place with high levels
of humidity or dust. Doing so could lead to fire or
damage equipment.
The installation and wiring of this product
requires specialized skills and experience. Have
the product installed by an Alpine authorized
dealer.
Forbidden
Mandatory
Forbidden
Mandatory
Forbidden
Forbidden
Forbidden
Forbidden
Forbidden
Forbidden
Forbidden
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Tools Required
Wire Strippers
Sockets:
7mm, 8mm, 10mm, 13mm
Panel Removal Tools
Wire Cutters Extension Ratchet
#2 Phillips Screwdriver Torx T15, T20, T30, T50 5mm Allen Wrench
Digital Multimeter Cordless Power Drill Air saw or similar
Silicone
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Accessory List
Front speaker pods 6.5” Woofers Tweeters
Amplifier Assembly Tweeter Adaptors SPV-65-JLT
Template Cable Ties (10) Replacement Bolts x 8
Crossovers Bass Control Knob Main Harness
TW level
0db
TW level
+3db
TW level
+3db
TW level
0db
T-Harness Power Cable RCA Adaptors
Polyfill Sheets (4)
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1 Unclip and remove the panel below the steering
column.
3 Unclip the steering column shroud then set aside.
5 Remove the (2) Phillips screws securing the radio
trim panel, then unclip and remove.
2 Remove the (2) Phillips screws exposed.
4 Unclip, unplug, and remove the climate control
panel.
6 Extract the (4) 7mm, screws from the factory radio,
disconnect and remove it.
Front speaker removal and installation
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Front speaker removal and installation (continued)
7 Using a panel removal tool, release the clips on the
top dash speaker grilles and remove them.
9 Remove the (4) Phillips screws securing the
instrument panel on the left side, unclip and remove
panel.
11 Remove the (5) Phillips screws securing the left
side dash panel, then unclip and remove.
8 Remove (1) Phillips screw securing the dash pad,
then unclip and remove.
10 Remove panel on the left side of the dash then
remove the (5) Phillips screws exposed.
12 Remove the (4) screws securing the top of the air
bag panel.
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Front speaker removal and installation (continued)
13 Remove the (4) 10mm screws and the (1) 8mm
screw securing the dashboard brace. The brace
only needs loosened to aid in removing the
speaker pod in the next step.
15 There is an electronic module attached to the
back of the pod which must be removed and
reused in kit assembly.
17 Pry outward in the bolt cover on the right end
of the grab bar and remove the (2) 10mm bolts
securing it to the dash.
14 Remove the (3) Phillips screws securing the
speaker pod, then unplug and remove. the pod.
16 Open the passenger door and remove the panel
on the right end of the dash. Remove the (5),
Phillips screws exposed.
18 Remove the glovebox then remove the (3) Phillips
screws exposed.
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Front speaker removal and installation (continued)
19 Looking up under the airbag assembly, remove
the (2) 13mm, bolts that secure the back of the
passenger side airbag.
21 Carefully unclip and pull out on the dashboard
panel enough to expose the speaker pod. Remove
the (3) Phillips, screws securing the pod and
remove.
23 Remove the grommet and factory wiring from the
speaker pods.
20 Unclip and slightly release the airbag panel, just
enough to expose the (3) Phillips, screws securing
the passenger side dash panel.
22 Remove the factory speakers from the speaker
pods.
24 Insert the factory wire into the replacement
speaker pods and pull gromment thru until it seats
into the hole.
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Front speaker removal and installation (continued)
25 Insert (1) polyfill sheet into each speaker pod,
connect and mount Speakers using factory
screws from step 22 then reinstall speaker pods in
reverse order and reassemble dash components
to their original location.
Insert Polyfil
l
27 Firmly press tweeter into mounting adaptor plate.
29 Connect tweeter to crossover and mount them
using the factory screws.
26 Extract (2) 7mm screws from each of the factory
top dash speakers and remove them.
28 Connect crossover as shown.
Note: it is recommended to use the red (+) lead
when utilizing the OEM radio.
Do not use
(2015-2017)
2007-2014
(2015-2017)
(-)
(+)
(+)
TW level
TW level
+3db
0db
Connect the tweeter (-)
to the crossover and
select either:
0db wire
(Default TW level) or
+3db wire
(Increased TW level)
for the tweeter (+) lead
30 Align the factory tweeter grill clips and secure by
firmly pressing downward.
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Sub Woofer/Amp Installation
1 Extract (4) T50 Torx Screws from the passenger side
seat.
Front of Vehicle
3 Connect the power cable to the Positive (+) battery
terminal and route the cable down towards frame of
the vehicle.
5 Route the Positive (+) power cable through the
grommet under the carpet and pull the power cable
from under the vehicle. Note: seal the grommet
with silicone (not included) to prevent water from
entering the cabin.
2 Tilt the passenger seat towards the back to reveal
(2) connectors, disconnect and remove the seat.
4 Route the power cable following the factory harness
along the vehicle’s frame and secure using supplied
cable ties.
6 Mount the subwoofer level remote on the center
console next to the gear shifter and route the cable
to the passenger side seat. Plug 3.5mm plug into
the bass knob input of the PWE-S8.
Front of Vehicle
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Sub Woofer/Amp Installation (continued)
7 Remove 10mm nut and attach the negative (-)
ground terminal to the factory ground stud below
the center console.
9 Connect the power cable to the main harness.
11 Connect the T-harness and the radio with either
the Tharness or the RCA adaptors. Refer to page
15 and 16 for the correct system diagram. Return
all removed components to their original location.
8 Connect the main harness to the amplifier assembly
and align it to the seat mounting holes.
Front of Vehicle
10 Route the main harness along the side of the
center console to the radio location.
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1 Extract the (4) 5mm, allen head, bolts and remove
factory grills.
3 Remove gromment holding speaker wire in place
and secure speaker wire out of the way.
5 With a reciprocating air saw or preferred cutting
device, cut along the line from step 4.
Note: Be cautious when cutting not to cut thru the
topside of the sound bar.
2 Extract the (5) T20, torx, screws from the speakers
and the (4) T30, torx, screws from the port and
remove.
4 Use supplied template and mark area of each side
for soundbar cutting.
6 Fill the speaker cavities witht supplied polyfil
sheets.
Rear Soundbar Speaker Removal & Installation
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7 Plug in the speaker. Use the supplied replacement
bolts (not the OEM 5mm allen heads) and mount the
speaker in the bar.
Rear Soundbar Speaker Removal & Installation (continued)
Troubleshooting Guide
Symptom Possible Cause Remedy
1 System will not turn on Missing or blown fuse at the
battery
Insert or replace fuse
Radio’s Remote Turn-On wire may
be disconnected.
Verify that Remote Turn-On wire
is connected.
2 Volume is too loud with
aftermarket headunit.
Speaker level out is connected at
the T-Harness.
Ensure that the low level RCA
adapters are used in aftermarket
headunit system (refer to the
corresponding wiring diagram).
Amplifiers gain control has not
been properly adjusted.
Refer to the corresponding
system diagram.
3 Subwoofer sounds very low. Gain level may be down to the
lowest setting.
Adjust level to reccommended
setting (refer to the
corresponding wiring diagram).
Audio Phase may be reversed. Ensure that the PHASE is set to
0˚.
RCA adaptor not installed Plug, Orange, RCA adaptor into
the connector near the PWE-S8
then plug RCA’s into PWE-S8.
4 One of the speakers has no sound. Disconnected pin or loose
connection.
Check all connections to
the speaker, loose pins,
disconnected terminals etc..
5 Airbag light is on Failed to disconnect the battery
while working on the vehicle.
Disconnect the battery and
re-connect after 5 minutes.
If problem is not solved, the
vehicle will have to be taken to
a Jeep dealer.
6 System turns on only on radio
source
Aftermarket Power Antenna wire is
connected to amp
Connect the Remote Turn-On
wire (Blue/White) to the Blue
wire on the amplifier harness.
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OEM Head Unit Wiring Diagram
L
R
Amplifier Speaker Wiring
CH 1 - White (+) White/Black (-)
CH 2 - Gray(+) Gray/Black (-)
CH 3 - Green (+) Green/Black (-)
CH 4 - Purple (+) Purple/Black (-)
NO
TE: FOR BEST PERFORMANCE SET AMPLIFIER AND SUBWOOFER TO RECOMMENDED SETTINGS AS SHOWN ABOVE
Black squares indicate position of switches
.
POWER PACK AMPLIFIER KTP-445U SUBWOOFER PWE-S8
BLACK
To Chassis
Ground
HEAD UNIT POWER PACK KTP-445U
To Vehicle Connectors
Power/Speaker
52-in Black Connector
Front Speaker
Rear Speakers
OEM T-HARNESS
ADAPTER
SubwooferRearFront
4-PIN BLACK CONNECTOR
4-PIN WHITE CONNECTOR
Blue/White
Amp Turn-On
To Vehicle’s Battery POSITIVE (+) Terminal
RED
To Battery Cable
TO OEM HEAD UNIT
BROWN/ORANGE
Red RCA Adapter
BROWN/ORANGE
Red Connector
WHITE/GRAY
White Connector
GREEN/PURPLE
Black Connector
Subwoofer
Level Remote
12345 6
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Alpine Restyle Head Unit Wiring Diagram
To Vehicle Connectors
iDatalink MAESTRO Module
To OBDII Connector
Power/Speaker
52-pin Black Connector
Front
Rear
Rear
Front
L
R
L
R
L
R
FrontRear Subwoofer
Blue
Amp Turn-on
To Vehicle’s Battery POSITIVE (+) Terminal
L
R
For a detailed Alpine Restyle head unit wiring diagram
refer to it’s corresponding installation manual.
Connect to Alpine Restyle
head unit low level output
Amplifier Speaker Wiring
CH 1 - White (+) White/Black (-)
CH 2 - Gray(+) Gray/Black (-)
CH 3 - Green (+) Green/Black (-)
CH 4 - Purple (+) Purple/Black (-)
POWER PACK AMPLIFIER KTP-445U SUBWOOFER PWE-S8
WHITE/GRAY
White Connector
RCA Adapter
GREEN/PURPLE
Black Connector
RCA Adapter
Front
Rear
Blue/White
Amp Turn-on
NOT USED
BLACK
To Chassis
Ground
RED
To Battery Cable
4 PIN BLACK CONNECTOR
4 PIN WHITE CONNECTOR
HEAD UNIT POWER PACK KTP-445U
BROWN/ORANGE
Red Connector RCA Adapter
BROWN/ORANGE
Red Connector
RCA Adapter
BROWN/ORANGE
Red Connector
WHITE/GRAY
White Connector
GREEN/PURPLE
Black Connector
12345 6
NOTE: FOR BEST PERFORMANCE SET AMPLIFIER AND SUBWOOFER TO RECOMMENDED SETTINGS AS SHOWN ABOVE
Black squares indicate position of switches.
