Trail Rocker Relay Center
Installation Instructions
Manual #90582
For Installing Painless Part Numbers: 57005
Painless Performance Products recommends you, the installer, read this installation
manual from front to back before installing this harness.
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Perfect Performance Products, LLC
Painless Performance Products Division
2501 Ludelle St.
Fort Worth, TX 76105-1036
PHONE: 800-423-9696 FAX: 817-244-4024
EMAIL: painless@painlessperformance.com
If you have any questions concerning the installation of this harness, feel
free to call Painless Performance Products' Tech Line at 1-800-423-9696.
The Tech Line can be reached from 8 A.M. to 5 P.M. central time, Monday
through Thursday, and 8 A.M. to 4:30 P.M. on Fridays.
We have attempted to provide you with as accurate of instructions as
possible and are always concerned about corrections or improvements that
can be made. If you have found any issues or omissions, or simply have
comments or suggestions concerning these instructions, please write us at
the above address, send us a fax at (817) 244-4024, or email us at
painless@painlessperformance.com. We sincerely appreciate your
business.
Perfect Performance Products, LLC shall in no event be liable in contract
or tort (including negligence) for special, indirect, incidental, or
consequential damages, such as but not limited to, loss of property
damage, or any other damages, costs or expenses which might be claimed
as the result of the use or failure of the goods sold hereby, except only the
cost of repair or replacement.
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CONTENTS
Refer to the Contents Figure (below) to take inventory. See that you have
everything you’re intended to have in this kit. If you find that anything is missing or
damaged, please contact the dealer where you obtained the kit or Painless
Performance at (800) 423-9696.
The Painless Trail Rocker Kits 57005 should contain the following:
 Relay Center pre-installed to powder coated bracket.
 200 Amp midi fuse
 Ignition power splice and weather-pack connector.
 Parts Kits: (12) un-insulated butt connectors, (12) pre-cut head shrink, (3)
Adel Connectors, (3) ¼” 20 Stainless Bolts, (3) ¼” nylon locking nuts, (2)
¼” stainless nuts, (2) lock washers, (2) flat washers, (1) rubber grommet
 Installation Manual (90582)
SMALL PARTS
Included with the Painless harness are parts kits containing miscellaneous
terminals, fuses, screws, and nuts. Many of the terminals are non-insulated and will
require heat shrink to be applied after the terminal has been properly crimped. Heat
shrink has been supplied.
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These non-insulated terminals allow you to keep a cleaner, more traditional look;
colored insulated terminals would seem out of place. When crimping these terminals,
take notice to the split in the terminal. Make sure the smooth side of the jaw on the
crimper goes towards this split as seen below.
TOOLS NEEDED
In addition to your regular hand tools, you will need, at least, the following tools:
 Stripping Tools:
A good set of wire strippers are required to strip wire properly.
This style of wire stripper is ideal for this harness install because
of its ability to properly strip wire gauges 10 to 20.These are
available from just about any local auto parts store, electrical
supply shop, home improvement store or can be purchased
online.

Volt/Ohm Meter:
A Volt/Ohm meter is always a good tool to have on hand when installing
any type of electrical components into any vehicle. Most basic units
provide the two functions required to diagnose electrical issues seen
during a harness install. These two functions are the ability to read DC
Voltage and electrical continuity or Ohms. They can be purchased from
any home improvement store, local hardware store and electrical supply
shop and online.
 Heat Gun:
Very useful to shrink the heat-shrink found in the parts kit.
 Basic Hand Tools
For tightening the relay center bracket, etc.
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INSTALLATION
Beginning on the Page 6 is a picture by picture, step by step
installation guide for installing your new Trail Rocker on an ’11-’15
Jeep JK. If you have an ’07-’10, please begin on page 20.
These steps MUST be followed as they are printed. Do not move onto
other parts of the installation out of sequence.
CAUTION: BEFORE THE INSTALLATION OF THIS PRODUCT,
DISCONNECT THE POWER FROM YOUR VEHICLE BY REMOVING THE
NEGATIVE BATTERY CABLE FROM THE BATTERY. THE BATTERY
SHOULD NOT TO BE RECONNECTED UNTIL INSTRUCTED
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INSTRUCTIONS FOR INSTALLING ON ‘11-‘15 JK
Step 1A: Using a 10mm socket, loosen and remove the
negative battery cable from the battery.
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Step 2A: Using wire cutters, cut loose the two “Umbrella
Style” Zip Ties on top of the battery tray.
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Step 3A: Position Adel clamp over the factory wiring harness.
Step 4A: Mount Adel clamp to inside wall of factory battery
tray using supplied ¼” 20 Bolt, flat washer, and ¼” nylon
locking nut.
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Step 5A: Using 10mm wrench or socket, remove factory
battery tray mounting nut from the stud on the firewall. (For
ease of installation, we recommend removing factory engine
cover)
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Step 6A: Position Trail Rocker relay center mounting bracket
over the factory firewall mounted stud.
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Step 7A: Position Adel clamps over the Trail Rocker wiring
harness.
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Step 8A: Using provided (2) ¼” 20 bolts, (2) flat washers, and
(2) nylon locking nuts, mount the Relay Center bracket to the
factory battery tray as shown.
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Step 9A: Using a 10mm wrench or socket, reinstall factory
battery tray nut to stud on firewall.
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Step 10A: Route Trail Rocker control wires across the firewall.
Secure the control wires to the factory harness loom using
provided zip ties. You can now reinstall your engine cover.
IF YOUR JEEP HAS AN AUTOMATIC TRANSMISSION, FOLLOW
STEPS 11A-15A
IF YOUR JEEP HAS A MANUAL TRANSMISSION, FOLLOW STEPS
16A-18A
Step 11A (AUTOMATIC TRANSMISSION ONLY): On the driver
side of the engine bay, locate the horn and remove it using a
10mm wrench or socket.
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Step 12A (AUTOMATIC TRANSMISSION ONLY): With the horn
removed, you can now access the pass-through on the
firewall. This is your access point to route the control wires
into the interior. (Note: You may need to push open the
factory carpet using your finger)
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Step 13A (AUTOMATIC TRANSMISSION ONLY): Carefully route
the white control wire connector through the pass-through.
Step 14A (AUTOMATIC TRANSMISSION ONLY): Apply
provided rubber grommet over control wires with the slit
facing up.
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Step 15A (AUTOMATIC TRANSMISSION ONLY): Push/apply
grommet into firewall access hole as shown. Please skip to
step 19A.
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Step 16A (MANUAL TRANSMISSION ONLY): Locate the
grommet pass through above the brake booster on the
firewall and remove the factory grommet.
Step 17A (MANUAL TRANSMISSION ONLY): Using something
rigid, you will be able to tape and guide the wires through the
grommet carefully as shown.
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Step 18A (MANUAL TRANSMISSION ONLY): Apply provided
rubber grommet over control wires with the slit facing up and
press the grommet in the factory location.
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Step 19A: Now you will move to the interior of the vehicle.
If you want to operate your switches with an ignition switched
power, please follow steps 1C-17C beginning on page 38.
If you want to operate your switches with a constant power
(as shipped), continue to page 54 for switch wiring
information.
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INSTRUCTIONS FOR INSTALLING ON ‘07-‘10 JK
Step 1B: Using a 10mm wrench or socket, loosen and remove
the negative battery cable from the battery.
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Step 2B: Using a flathead screwdriver, lightly pry the factory
wiring and connector from the right side of the battery box.
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Step 3B: After removing the connector, you will now “unlock”
it using a flathead screwdriver.
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Step 4B: With the connector unlocked, you will now unplug it.
Step 5B: Using 10mm wrench or socket, remove factory
battery tray mounting nut from the stud on the firewall. (For
ease of installation, we recommend removing factory engine
cover)
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Step 6B: Position Trail Rocker relay center mounting bracket
over the factory firewall mounted stud.
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Step 7B: Using provided (1) ¼” 20 bolts, (1) flat washers, and
(1) nylon locking nuts, mount the Relay Center bracket to the
factory battery tray as shown.
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Step 8B: Using a 10mm wrench or socket, reinstall factory
battery tray nut to stud on firewall.
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Step 9B: Position Adel clamp over the Trail Rocker input and
output wires.
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Step 10B: Mount Adel clamp to the hole provided on the
Relay Center bracket using supplied ¼” 20 Bolt, flat washer,
and ¼” nylon locking nut.
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Step 11B: Route Trail Rocker control wires across the firewall.
Secure the control wires to the factory harness loom using
provided zip ties.
IF YOUR JEEP HAS AN AUTOMATIC TRANSMISSION, FOLLOW
STEPS 12B-16B
IF YOUR JEEP HAS A MANUAL TRANSMISSION, FOLLOW STEPS
17B-19B
Step 12B (AUTOMATIC TRANS ONLY): On the driver side of
the engine bay, locate the horn and remove it using a 10mm
wrench or socket.
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Step 13B (AUTOMATIC TRANS ONLY): With the horn
removed, you can now access the pass-through on the
firewall. This is your access point to route the control wires
into the interior. (Note: You may need to push open the
factory carpet using your finger)
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Step 14B (AUTOMATIC TRANS ONLY): Carefully route the
white control wire connector through the pass-through.
Step 15B (AUTOMATIC TRANS ONLY) Apply provided rubber
grommet over control wires with the slit facing up.
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Step 16B (AUTOMATIC TRANS ONLY): Push/apply grommet
into firewall access hole as shown. Please skip to step 20B.
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Step 17B (MANUAL TRANSMISSION ONLY): Locate the
grommet pass through above the brake booster on the
firewall and remove the factory grommet.
Step 18B (MANUAL TRANSMISSION ONLY): Using something
rigid, you will be able to tape and guide the wires through the
grommet carefully as shown.
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Step 19B (MANUAL TRANSMISSION ONLY): Apply provided
rubber grommet over control wires with the slit facing up and
press the grommet in the factory location.
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Step 20B: Now you will move to the interior of the vehicle.
If you want to operate your switches with an ignition switched
power, please follow steps 1C-17C beginning on page 38.
If you want to operate your switches with a constant power
(as shipped), continue to page 54 for switch wiring
information.
IF YOU WANT TO OPERATE YOUR SWITCHES WITH A
CONSTANT POWER (AS SHIPPED), YOU WILL SKIP PAGES 3852. THESE STEPS ILLUSTRATE HOW TO HOOK UP YOUR TRAIL
ROCKER TO IGNITION SWITCHED POWER.
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Step 1C: You will now remove the panel below the steering
column by carefully pulling from the top first.
Step 2C: With the plastic panel out of place, you will now use
a 10mm socket or wrench to remove the two bolts holding the
metal bracket in place.
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Step 3C: You will now locate the ignition switch connector
and remove it. Using a small flathead screwdriver, unlock the
orange locking clip.
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Step 4C: With the locking clip unlocked, you will squeeze the
bottom of the connector and remove it by pulling it down.
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Step 5C: You will now peel back the convoluted tubing
covering the wires running to the ignition switch connector
and cut the Pink/White Ignition 12V wire about 2 inches from
the connector.
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Step 6C: Now it is time to unpin your factory ignition switched
12V wire. To do this, you will first use a small screwdriver or
pick to remove the blue locking mechanism.
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Step 7C: With the blue lock removed, you will now use a small
pick or screwdriver to depress the lock underneath the middle
terminal. (Pin 3 = Ignition Switched 12V)
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Step 8C: With the terminal unlocked, you will now pull the
terminal out of the connector.
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Provided in your parts kit is a replacement Pink/White wire
that will provide your Trail Rocker with ignition switched
power while allowing you to terminate into the factory
ignition switched 12V wire.
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Step 9C: You will now re-pin the factory ignition switch
connector (Pin #3) with the supplied ignition switch wire.
Step 10C: With the ignition switch wire fastened, you will
now reinstall the blue locking mechanism.
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Step 11C: You will now strip the factory pink/white 22 gauge
wire 3/8” an inch. Once stripped, you will fold the copper
wire in half, ensuring a tight connection into the butt
connector. Once stripped, you will now crimp the factory wire
into the open end of the butt connector on the provided Trail
Rocker ignition wire. (NOTE: make sure the heat shrink is
installed before crimping).
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Step 12C: After crimping, you will now slide the heat shrink
over the connection. Using a heat source, heat the heat
shrink ensuring a tight wrap around the connector.
Step 13C: Reinstall the factory convoluted tubing over the
Trail Rocker ignition switched 12V wire and factory wires.
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Step 14C: Reinstall the factory ignition switch connector.
Step 15C: You will now connect the weather pack connector
from the ignition switched 12V to the white control wire plug.
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Step 16C: Connect the white control wire plug to the switch
panel plug. Once connected, apply zip ties to factory wiring.
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Step 17C: Reinstall metal bracket and plastic panel.
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SWITCH WIRING
Provided in your Trail Rocker interior wiring is one RED power
wire. To wire up multiple switches, you will need to daisychain from the main power input, as shown below.
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If you are running lighted rocker switches, they will need to be
wired as shown below:
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OUTPUT WIRE ROUTING.
As there are many accessories available that the Trail Rocker
can control, there are no specific pictures of output wire
installation. You will route these wires to the location of your
components.
Ensure to route safely, avoiding high heat areas, moving parts,
and sharp edges. It is suggested to use grommets for any
wires passing through metal to avoid wearing through the
wire insulation and causing arcing.
Make sure any accessories and components you install are
properly grounded.
Output Wire Color Diagram:





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

Output #1: Grey/White
Output #2: Blue
Output #3: Yellow/White
Output #4: Orange
Output #5: Blue/Yellow
Output #6: Purple
Output #7: Pink
Output #8: Green
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FINAL STEPS OF INSTALLATION
Step 1D: After wiring in your components to the output
wiring, you may now reconnect the negative terminal of your
battery.
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Step 2D: With the battery connected, you can now test out
and enjoy your new Trail Rocker!
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NOTES
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NOTES
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Painless Performance Limited Warranty
and Return Policy
Chassis harnesses, fuel injection harnesses, Trail Rocker and Striker ColdShot units are covered under a
lifetime warranty.
All other products manufactured and/or sold by Painless Performance are warranted to the original
purchaser to be free from defects in material and workmanship under normal use. Painless Performance
will repair or replace defective products without charge during the first 12 months from the purchase
date. No products will be considered for warranty without a copy of the purchase receipt showing the
sellers name, address and date of purchase. You must return the product to the dealer you purchased it
from to initiate warranty procedures.
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Painless Performance Products LLC
2501 Ludelle Street
Fort Worth, TX 76105
Phone (817) 244-6212
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