PAC RP4.2-TY11 User manual

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 1
Rev: V4
Date:091118
Introduction and Features
Important Notes
The RP4.2-TY11 interface allows the replacement of a factory radio in select Toyota/Lexus/Scion vehicles and will retain
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program two radio functions to each SWC button by using short press long press dual command functionality, and also
provides outputs such as: vehicle speed signal (VSS), illumination, reverse trigger and parking brake.
1. These instructions only apply to R.3.1.1.43 or later revisions. The revision info can be found on a small white sticker on the
interface and packaging.
2. Connection of the OBD connector, with the White / Red and White / Black wires, is not always necessary. Use of these wires
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outputs at the radio. See the “Installation Steps” section starting on page 3 for additional information.
3. Adjustment of the vehicle settings through the original radio’s vehicle settings menu will be disabled after installation of the new
radio. It is advised to make sure all settings are as you desire prior to removal of the original radio.
4. The RP4.2-TY11 does not retain Rear Seat Entertainment.
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7. When using real time fade, if the fader setting is biased more to the front or rear, as the radio turns on the sound may begin at
the default setting and then quickly transition to your custom setting.
8. Aftermarket radio features such as High Pass Filters (crossovers), DSP or “Network Mode” will interfere with proper fader
function. In order for the RP4.2-TY11’s fader function to work, the audio from the aftermarket radio’s output must match so it can
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9. The USB-TY1 or USB-TY2 must be purchased in order to retain the factory USB port. Please refer to www.pac-audio.com to see
which harness you will need.
10. The CAM-TY11 or CAM-TY12 must be purchased in order to retain the factory reverse camera. Please refer to
www.pac-
audio.com to see which harness you will need. If the required harness is not available, it is possible to hardwire the
reverse camera using the information provided in Appendix A on Page 7.
Module Layout
Module Status LED
USB Status LED
Interface Connector 1
Expansion Port
Interface Connector 2
$PSOL¿HG$XGLR2XWSXW
1RQ$PSOL¿HG$XGLR2XWSXW
Programming Button
USB Port
Radio Select DIP switches
Interface Connector 4
$PSOL¿HG$XGLR2XWSXW/HYHO$GMXVWPHQW

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 2
Rev: V4
Date:091118
Interface Connectors
Plug Interface Connectors 1, 2 and 4 into the appropriate port on the RP4.2-TY11 interface (using the diagram on page 1 or
the label on the bottom of the RP4.2-TY11 interface). The Connector 3 connection will be dependent upon whether or not the
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Vehicle Connectors
Depending on the application, the
RP4.2-TY11 will need 2 or 3 of the
5 vehicle connectors. The additional
connectors will be left unused on
the harness. Any additional radio
harnesses in the vehicle that do
not plug into one of the vehicle
connectors shown above, will not
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combinations needed for most
vehicles.
Interface Connector 1 Interface Connector 2 Interface Connector 4
Interface Connector 3
Vehicle Connector 1 Vehicle Connector 2 Vehicle Connector 3 Vehicle Connector 4 Vehicle Connector 5
Combination 1
Typical 2004 to 2013 NON-AMPLIFIED
Vehicle Connector 3 Vehicle Connector 4 Vehicle Connector 5
Combination 2
Typical 2004 to 2013 AMPLIFIED
Vehicle Connector 1 Vehicle Connector 3
Combination 3
Typical 2014 to 2017 AMPLIFIED AND NON-AMPLIFIED
Vehicle Connector 2 Vehicle Connector 4 Vehicle Connector 5
Combination 4
Non-Typical 2012 to 2014 AMPLIFIED
Vehicle Connector 2
Vehicle Connector 1
*OBD-2 V3 *The OBD-2 V3 harness provides
CAN bus from the vehicle to the
RP4.2-TY11 for select vehicles
that do not already provide CAN
bus to the radio. Only use the
OBD-2 V3 if the aftermarket radio
requires connections for Vehicle
Speed Sense, Parking Brake, or
Reverse Signal for the following
applications:
1. Combination 1 from below.
2. Combination 2 from below.

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 3
Rev: V4
Date:091118
Installation Steps
Other = Advent, BOYO, Dual, Lightning Audio, Rockford Fosgate, Visteon
2WKHU  Advent, BOYO, Dual, Lightning Audio, Rockford Fosgate, Visteon
Alpine JVC Kenwood Clarion /
Nakamichi
Pioneer /
Other* Sony Fusion
1 2 1 & 2 3 1, 2, & 3 4 1 & 4
Set DIP switches that correspond with your radio to the ON position.
Set all other DIP switches to the OFF position.
* Other - Advent, BOYO, Dual, Jensen, Lightning Audio, Rockford Fosgate, Visteon
Purple Rear R + input
Purple / Black Rear R - input
Green Rear L + input
Green / Black Rear L - input
Gray Front R + input
Gray / Black Front R - input
White Front L + input
White / Black Front L - input
Blue / Yellow SWC Output
3.5 mm Jack SWC Output
Pink Vehicle Speed
Sense Output
Light Green Parking Brake
Output
Violet / White Reverse Signal
Output
Orange / White Illumination Output
Blue / White Amp Turn On Input
1. Set the Radio Select DIP switches according to the radio you are installing.
2. Wire the aftermarket radio harness per the tables to the right and the information below.
If the aftermarket radio does not require connections for Vehicle Speed Sense, Parking
Brake, or Reverse Signal, proceed to step “3”.
a. If the vehicle does not use the 28-pin connector (Vehicle Connector 2), proceed
to step “III” below. There are three different methods for obtaining the analog
navigation outputs from the interface:
I. Vehicles that have the analog signals at the radio: Plug the 28-pin
connector (Vehicle Connector 2) from the RP4.2-TY11 into the vehicle harness.
Find the Pink (pin 17), Light Green (pin 15) and Purple / White (pin 2) wires in
the RP4.2-TY11 harness and check for wires populating these positions on the
factory side of the connector. If the wires are present, you can use the analog
navigation outputs coming from Vehicle Connector 2 in the PAC harness.
II. Vehicles that have CAN data at the radio: Plug the 28-pin connector
(Vehicle Connector 2) from the RP4.2-TY11 into the vehicle harness. Find the
White / Red (pin 9) and White / Black (pin 10) wires in the RP4.2-TY11 harness
and check for wires populating these positions on the factory side of the connector.
If the wires are present, you can use the “nav wires” coming from Interface
Connector 4 in the PAC harness.
III. Vehicles that do not have the CAN data or the analog wires at the radio:
Insulate the Yellow and Black loose wires in the OBD-2 V3 connector (they
will not be used). Connect the OBD-2 V3 connector to the vehicle’s OBDII
connector (found under the dash on the driver’s side). Run the two wires from the
OBD-2 V3 from the OBDII connection, up to the radio cavity in the dash. Next,
unplug the 2-pin connector between Interface Connector 4 and Vehicle Connector
2. Connect the OBD-2 V3 2-pin connector into the 2-pin connector that comes
from Interface Connector 2. This will allow for use of the “nav wires” coming from
Interface Connector 4 in the PAC harness.
3. Wire the Yellow, Red, and Black wires from the harness labeled “Connect to Aftermarket
Radio” to the wires on the aftermarket radio harness.
4. Wire the speaker wires from Interface Connector 4 to the speaker wires on the aftermarket
radio harness.
5. Wire the Blue / White wire from Interface Connector 4 to the amp turn on lead of your
aftermarket radio.
6. Depending on the aftermarket radio, either the Blue / Yellow wire or the 3.5 mm Jack
(not both) SWC Outputs will be used.
White / Red HS CAN + Input
White / Black HS CAN - Input
Yellow +12v
Red Accessory Output
(10 amp)
Black Ground
Pink Vehicle Speed
Sense Output
Light Green
Parking Brake
Outpu
t
Violet / White Reverse Signal
Output
Aftermarket Radio Wiring Table
Wires from Interface Connector 4
Wires Labeled “Connect To
Aftermarket Radio”
OBD-2 V3 Wires
7. Once all connections have been made, plug the interface into the vehicle.
8. Turn the ignition on and set the gain on the side of the interface to the desired level. See
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the radio does not turn on and the LED on the interface is solid orange, check the DIP
switches on the side of the interface to make sure they are not all in the on position.
9. If you wish to reassign functions to the SWC, or utilize short press, long press dual
command functionality, follow the programming instructions starting on the following page.
Yellow Not Used
Black Not Used
Insulate the unused Yellow and
Black wires in the OBD-2 V3
Connector

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 4
Rev: V4
Date:091118
Default Steering Wheel Control Programming
IMPORTANT! The interface comes pre-programmed for all of the vehicles factory SWC functions and does not require
programming unless you wish to re-assign the SWC functions, utilize short press long press dual command functionality, or
assign the programmable 12v output to a SWC button. The SWC can always be restored to default settings by pressing and
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Optional Steering Wheel Control Programming
If you wish to re-assign the SWC functions, utilize short press long press dual command functionality, the interface must be
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wheel does not have, or you do not want to program, press and release the programming button on the side of the interface to
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proceed to the next one.
Short Press Long Press Dual Command Functionality
This feature allows you to assign two aftermarket radio functions to each of the vehicles SWC buttons. It can be used with as
many of the buttons as the user likes or none at all. When this functionality is implemented, quickly pressing and releasing a
SWC button will initiate the short press command while pressing and holding a SWC button for longer than two seconds will
initiate the long press command. Please note that no long press commands are programmed by default. If you wish to assign
dual command functionality to the SWC please follow the programming steps below.
Steering Wheel Controls
Alpine JVC Kenwood Clarion Pioneer Sony Fusion
Volume + Volume + Volume + Volume + Volume + Volume + Volume + Volume +
Volume - Volume - Volume - Volume - Volume - Volume - Volume - Volume -
Mode Source Source Source Source Source Source Source
Back Band Att Play Band Band Band N/P
Voice Voice Voice Voice Voice Voice Voice Mute
Answer Receive Receive Off Hook Send Answer Answer Power
End End Reject On Hook End End Reject/Source N/P
Enter Power Power Preset Up N/P Mute N/P Power
Arrow Up Track Up Track Up Track Up Track Up Track Up Track Up Track Up
Arrow Down Track Down Track Down Track Down Track Down Track Down Track Down Track Down
Arrow Left Preset Down Disc Down Disc Down N/P Preset Down Preset Down N/P
Arrow Right Preset Up Disc Up Disc Up N/P Preset Up Preset Up N/P
Default SWC Button Assignments

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 5
Rev: V4
Date:091118
Steering Wheel Controls (cont.)
Alpine JVC Kenwood Clarion Other * Pionee
r
Son
y
Fusion
1 Volume + Volume + Volume + Volume + Volume + Volume + Volume + Volume +
2 Volume - Volume - Volume - Volume - Volume - Volume - Volume - Volume -
3 Mute Mute Mute Mute Mute Mute Mute Mute
4 Preset + Source Source Source Preset + Preset + Preset + Source
5 Preset - Track + Pla
y
Search + Preset - Preset - Preset - Track +
6 Source Track - Track + Search - Source Source Source / End Call Track -
7 Track + Band / Disc + Track - Band Track + Track + Track + Audio
8 Track - Preset / Disc - Disc / FM + Send / End Track - Track - Track - Powe
r
9 Powe
r
Select Disc / AM - Send Band Band Band
10 Enter / Pla
y
Attenuation Answe
r
End Answer ** Phone Menu Power / End Call
11 Band / Pro
g
ram Phone Receive Voice Voice End ** Answer Call Voice / Answer / End Call
12 Receive Phone Reject On Hook PTT ** End Call Voice (Android Auto & Car
Pla
y)
Answer / End Call***
13 End Voice Off Hook Voice
14 Voice Powe
r
Mute
15 Preset +
* Dual / Axxera, Jensen, Rockford Fosgate ** Jensen ONLY ***XAV-AX100 / 200 Only
Optional Programming Order
5. If you come across a function in the chart that your steering wheel does not have, or you do not want to program, press and
release the program button on the side of the interface to skip that function.
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7. Test the interface for proper functionality. Whenever a SWC is pressed the LED on the interface should blink. If any function
does not work, repeat the programming steps.
SWC Re-Calibration Procedure
1. Turn the key to the ignition position.
2. Press and hold the programming button until the LED begins blinking amber.
When the LED begins blinking, release the programming button. The LED will
light solid amber.
3. Within 7 seconds, press and hold the button that is to be learned on the steering
wheel. The LED will turn off when the button is pressed and begin blinking when
the value has been learned. Once the LED begins blinking, release the button.
Please Note: the buttons must be calibrated in the order shown in the chart.
If you press the wrong button the LED will not respond at all.
4. If you need to program more buttons, repeat step 3 for each additional audio
function on the steering wheel.
5. If you come across a function in the chart that your steering wheel does not
have, press and release the program button on the side of the interface to skip
that function.
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indicating end of programming.
7. Test the interface for proper functionality. Whenever a SWC is pressed the
LED on the interface should blink. If any function does not work, repeat the
programming steps.
ZĞͲĂůŝďƌĂƚŝŽŶWƌŽŐƌĂŵŵŝŶŐKƌĚĞ
ƌ
VolumeUp
VolumeDown
SeekUp
SeekDown
Mode
Voice
PhoneAnswer
PhoneHangUp
Enter
Back
ArrowRight
ArrowLeft
After you have re-calibrated the SWC buttons, the default SWC button assignments will be the same as what is listed in the
chart on page 4. If you wish to re-assign button functions you must also go through the programming listed above (Optional
SWC Programing Procedure).
Optional SWC Programming Procedure
1. Turn the key to the ignition position.
2. Press and release programming button on the side of the interface. The Status LED will turn green.
3. Within 7 seconds, press the button that is to be learned on the steering wheel. The LED will turn red when the button is pressed.
At this point you have two options:
A. For short press functionality: Release the button within 1.5 seconds. The LED will turn back on.
B. For long press functionality: Hold the button until the LED starts blinking. Release the button and the LED will
go back to solid.
4. If you need to program more buttons, repeat step 3 for each additional audio function on the steering wheel.

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 6
Rev: V4
Date:091118
1. Turn the ignition on. The LED on the interface will turn on and the +12v accessory wire will turn on.
2. Turn on the radio and check volume, balance and fade.If you do not hear any audio you may need to cycle the ignition to
LQLWLDOL]HWKHIDFWRU\DPSOL¿HU
3. If the overall volume is too low, use the gain adjustment on the side of the RP4.2 interface to set it to the desired level. The
best way to do this is to turn the volume on the radio to 3/4 volume, then turn the gain on the RP4.2 until some distortion is
heard, then back it down a little.
4. If you have a JBL system and there is no audio, please make sure the Blue / White wire in the radio connector is hooked up
properly. If there is still no audio, reset the interface according to the procedure in the next section.
5. If fading is acting inconsistent, please ensure that all speakers are connected to the proper polarity.
6. Verify that all SWC are functioning properly. If any of the SWC are not functioning properly you may need to reset the
interface or follow the re-calibration procedure above.
7. The LED and radio will turn off when the ignition is turned off.
Restoring Factory Settings
You can restore the interface to factory default settings by pressing and holding the programming button on the side of the module
until the status LED starts blinking red. Once the LED starts blinking red, release the button. You must release the button while
the LED is blinking red in order to perform the reset. Please note, the LED will go through two stages before it starts blinking red.
First it will blink green, then amber, then red.
This reset will restore the following settings to their factory defaults:
• SWC Mapping
• Parking Brake Output Settings
• )DFWRU\$PSOL¿HU6HWWLQJV
• Real Time Fade will be reset to on
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RadioPRO App
Use of the RadioPRO App allows
you to do the following:
• &RQ¿JXUH8VHU,QWHUIDFH2SWLRQVVXFK
as:
• Aftermarket radio Parking Brake
Sequencing
• )DFWRU\DPSOL¿HUVHWWLQJV%DVV
Mid, Treble, Gain, Fader and
Balance)
• Real Time Fading
• Update Product Firmware
• Read Firmware/Hardware Versions
• Access Product User Manuals
PLEASE NOTE:
The interface must be connected to the vehicle when using the following features of the Radio PRO App:
• )DFWRU\$PSOL¿HU6HWWLQJV
The interface does not need to be connected to the vehicle when using the following features of the Radio PRO App:
• Firmware Updates
• 5HDGLQJ¿UPZDUHKDUGZDUHYHUVLRQV

Radio Replacement and
Steering Wheel Control Interface
for Toyota / Lexus / Scion Vehicles
RP4.2-TY11
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
P ifi A C ti
Page 7
Rev: V4
Date:091118
,QIRWDLQPHQW)DFWRU\$PSOL¿HU6HWWLQJV
The RadioPRO app will also allow you to adjust the
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Gain, Fader, Balance, Bass, Mid and Treble and real
WLPHIDGH:KHQUHDOWLPHIDGHLVHQDEOHGLQDPSOL¿HG
systems, it will allow fading to be controlled directly
from the aftermarket radio. Restoring factory settings
on the module will default all values back to middle.
RadioPRO App (cont.)
Firmware Updates
The RadioPRO app will also allow you to update the
LQWHUIDFHZLWKQHZ¿UPZDUHDVLWEHFRPHVDYDLODEOH
Please visit www.pac-audio.com or contact our tech
VXSSRUWGHSDUWPHQWWRVHHLIWKHUHLVD¿UPZDUHXSGDWH
for your interface.
In order to update the interface all DIP switches must be set to the down position. Connect the interface to your PC and select
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you have installed.
Appendix A
Reverse Camera Retention
If you do not have the CAM-TY11 or CAM-TY12 harness available, follow the schematics below to retain the factory reverse
camera. Older vehicles (pre 2014) will be equipped with the 16-pin harness (Fig. 1) and newer vehicles (2014+) will be
equipped with the 24-pin harness (Fig.2). Some years may overlap.
You can obtain the necessary 6v+ and ground for the factory camera from twisted Yellow / Black and Black wires labeled “OEM
CAMERA POWER” in Interface Connector 2.
Fig. 1
Func on Pin Wire Color
Camera Power 6V + 7 Black
Video + 8
Camera Ground 15 Shield
Video - 16
Red
White
Fig. 2
Func on Pin Wire Color
Camera Power 6V+ 11 Red
Video + 12 White
Camera Ground 23 Shield
Video - 24 Black
Connectors are viewed from wire side