Bestop Trektop PRO User manual

P1 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
Installation Instructions
Trektop PRO Defrost Harness
Vehicle Application:
Bestop Trektop PRO
2007-current
Part Number 54857
Installation Tips
Before you begin installing your new Trektop PRO Defrost Harness,
please read all the instructions thoroughly.
Failure to switch off the defrost grid when the vehicle key is turned off will
cause the battery to drain.
Installation TimeTools
Skill Level
2 Hours
3 - Moderately Difficult
Drill-Driver
Qty. 14
Zip Ties
Trim
Fasteners
Trim
Removal Tool
Utility
Knife
Support
We’re here to help!
Go to www.Bestop.com and
click “Contact Us”
See a video showing
installation of this top at
www.bestop.com/video
1/4” drive
7mm Socket
1/4” Nut Driver
Safety
Glasses 1” Holesaw
POWER LOAD GROUND

P1B - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
Installation Instructions
Trektop PRO Defrost Harness
Vehicle Application:
Bestop Trektop PRO
2007-current
Part Number 54857
Un defaut d’extinction du
dégivrage lorsque le
contact du véhicule est
coupé entrainera le
déchargement de la
batterie.
La bateria se descargará
si no desconecta
el desempañador
cuandola llave del
vehiculo esté en
posicion de apagado.

All Sections Wiring Harness
Parts List
- Required parts for each installation section
Multiple Pages
Installation Instructions
Trektop PRO Defrost Harness
Vehicle Application:
Bestop Trektop PRO
2007-current
Part Number 54857
P2 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
Qty. 14
Zip Ties
Blk
Attaches to connector
coming from battery
Attaches to existing
wiring harness at
rear of vehicle
Red
POWER LOAD GROUND
Wiring Harness “B”
Runs along the vehicle floor
to the rear of the vehicle.
Wiring Harness “A”
Attaches to the battery and runs
through the vehicle firewall.

Section 1 Attach Wiring Harness to Vehicle Battery Page 3
P3 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 2
Attach Red terminal (+) on Wiring Harness
“A” to the positive terminal on the battery.
Attach the Black (-) on Wiring Harness “A” to
the negative terminal on the battery.
Step 1
Route the wiring harness across the firewall,
from the battery on the passenger side, to
the driver side, where the harness will pass
through the firewall.
Zip tie the wiring harness in place with 4 zip
ties. Zip tie the new wiring harness to the
existing vehicle harness.
Step 2
Wiring Harness “A”
Blk
Red (+)
(-)
Red (+)
Blk (-)

Section 2 Pass Wiring Harness Through Vehicle Firewall Page 4
P4 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1
Push the large connector end of the harness
through the rubber grommet in the firewall.
You may use a knife to make small cuts in
the grommet to allow the connector to fit
through the opening.
Step 1
Wiring Harness “A”
Blk
Red (+)
(-)

Section 3 Connect “A” and “B Harness; Drill Hole for Power Switch Page 5
P5 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 2
Pull the power connector end of Harness “A”
through the firewall and plug it in to the
mating connector on Harness “B”.
Zip tie Harness “A” to the existing vehicle
wiring harness under the dashboard.
Step 1
Drill a 1” (24.5mm) hole for the power
switch in the dashboard trim panel below
and left of the steering wheel, near the driver
door opening. Be sure to inspect and select
a location that will not interfere with any
components behind the panel.
Step 2
Wiring Harness “A”
Wiring Harness “B”
POWER LOAD GROUND
Drill-Driver
with 1” Holesaw
Zip Ties
Qty. 2

Section 4 Install Power Switch Page 6
P6 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 3
Step 2
Remove the power switch from wiring
harness “B”. Make note of the connections
and the wire colors for when you re-connect
the switch later.
Step 1
Fish the harness end with the three leads
up behind the dashboard and through the
1” hole you drilled earlier.
Step 2
Reconnect the power switch to the three
leads. Make sure to connect the wires to
the correct terminals.
Feed the harness back through the
hole until the switch can be seated in
to the hole.
Snap the switch into the 1” hole.
Step 3
Wiring Harness “B”
Power
Switch
POWER LOAD GROUND
Power Switch
POWER LOAD GROUND
Red Blk
POWER LOAD GROUND
Power Switch
Red

Section 5 Run Harness to Rear of Vehicle Page 7
P7 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 2
Using the trim removal tool,
remove the trim fasteners indicated.
Save the fasteners to be reused when
reinstalling the trim panel.
Step 1
After removing the trim fasteners,
push both pieces of trim back from
the door sill.
Tuck the wiring harness under the trim
panels, passing the connector around
the door pillar and underneath the trim
panel.
Step 2
Wiring Harness “B”
POWER LOAD GROUND
1
2
Trim
Removal Tool
1
2 43

Section 5 Run Harness to Rear of Vehicle Page 8
P8 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 2
4-Door Vehicles:
Using the trim removal tool,
remove the trim fasteners indicated.
Save the fasteners to be reused when
reinstalling the trim panel.
Push the trim panel and the carpet back just
far enough to tuck the harness underneath
the door sill.
Step 1
Tuck the wire harness behind the door
sill and underneath the trim panel and
the carpet.
Step 2
Wiring Harness “B”
POWER LOAD GROUND
1
2
34
Trim
Removal Tool

Section 5 Run Harness to Rear of Vehicle Page 9
P9 - 54857 - Rev. A 0415 Installation Instructions - Trektop PRO Defrost Harness © 2015 Bestop, Inc.
HardwareStep 1 Step 2
Failure to switch off the
defrost grid when the
vehicle key is turned
off will cause the
battery to drain.
Pull the carpet back just far enough to tuck
the harness underneath the body lip.
Zip tie the harness to the existing vehicle
harness running behind the carpet.
Step 1
Bring the connector end of the harness
out from under the body lip and plug it
into the existing vehicle harness.
Step 2
Wiring Harness “B”
POWER LOAD GROUND
1
2