PAC RP5-GM32 User manual

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 1
Introduction and Features
Important Notes
1. Aftermarket radio must have an auxiliary input in order to retain RSE audio with additional harness sold separately. Part#
(GMRVD2).
2. Aftermarket radios with a 2-wire resistive based SWC circuit will not have default button assignments programmed. Please
refer to the owners manual of the radio you are installing to nd out the proper SWC programming procedure.
3. If the vehicle chimes when the radio is removed, the CMX is not necessary. In order to get the best possible sound out of the
CMX, please mount it in a place free and clear of any obstructions, preferably as close as possible to the bottom of the dash
pointing down toward the oor of the vehicle.
Module Layout
Programming Button
USB Port
Radio Select DIP switches
Interface Connector 4
Adjustment Dial
Module Status LED 1
USB Status LED 2
Interface Connector 1
Not Used
Interface Connector 2
Amplied Audio Output Connector 3
Non-Amplied Audio Connector 3
The RP5-GM32 interface allows the replacement of a factory radio in select General Motors vehicles with 29 Bit Data-Bus. Using
this interface will retain factory features such as Warning Chimes, Bose Amplier, Steering Wheel Controls (SWC), Rear Seat
Entertainment (RSE), and Rear Seat Controls (RSC) when the original radio is removed. The RP5-GM32 provides data bus driven
outputs such as retained accessory power (RAP), vehicle speed signal (VSS), illumination, reverse trigger and parking brake.

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 2
Installation Steps
Other = Advent, BOYO, Dual, Lightning Audio, Rockford Fosgate, Visteon
Set DIP switches that correspond with your radio to the ON position.
Set all other DIP switches to the OFF position.
If your brand is not listed above, please use “ALL OTHER BRANDS.”
1. Set the Radio Select DIP switches according to the radio you are installing.
2. Wire your aftermarket radio to the RP5-GM32’s harness according to the wiring connections chart below.
3. The Brown mute loop in Interface Connector 4 (if not cut) will turn the RP5’s accessory output off when any OnStar
function is active. If the aftermarket radio has a mute input, cut this loop and connect the Brown wire in pin 23 to it. This pin
is located in the top row next to the solid blue wire. (The top of the connector has the locking tab on it).
4. Plug Interface Connectors 1 and 2 into the appropriate ports on the RP5-GM32 interface (using the diagram on Page 1 or
the label on the bottom of the interface to identify the connector ports).
5. The Connector 3 connection will be dependent upon whether or not the vehicle has a factory amplied system. Plug this
connector into one of the two ports on the RP5-GM32 (using the diagram on Page 1 or the label on the bottom of the interface
to identify the port appropriate for the installation).
6. If the aftermarket radio is equipped with an auxiliary input and you wish to retain the factory RSE audio, plug the RCA
connectors from the Vehicle Connector 2 into the radios auxiliary input.
7. Remove the factory radio and plug in the RP5-GM32’s Vehicle Connector 1 and Vehicle Connector 2 into the factory vehicle
harness.
8. If you wish to reassign functions to the SWC, follow the Optional Steering Wheel Control Programming on Page 4.
9. Plug the 2-Pin connector into the CMX Chime Module (If the vehicle chimes when the radio is removed, the CMX is not
necessary). PLEASE NOTE: In order to get the best possible sound out of the CMX, please mount it in a place free and clear
of any obstructions, preferably as close as possible to the bottom of the dash pointing down toward the oor of the vehicle.
Interface Connector 1
(3-pin)
Interface Connector 2
(20-pin)
Interface Connector 4
(24-pin)
Interface Connector 3
(12-pin)
Vehicle Connector 1
(44-pin)
Vehicle Connector 2
(20-pin)
Yellow 12v+
Red Accessory Output
(10 amp)
Black Ground
Brown Loop Mute Output
Blue Not Used
Blue / White Remote On Input
Orange Not Used
Orange / White Illumination Output
Purple / White Reverse Output (+)
Light Green Parking Brake Output (-)
Pink Vehicle Speed Signal
(VSS) Output
Blue / Yellow SWC Output / Key 1
Brown SWC Output / Key 2
3.5 mm Jack SWC Output
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
Wiring Connections
Alpine JVC
Kenwood /
Lightning
Audio
Stinger Clarion /
Nakamichi
All Other
Brands Pioneer Sony Fusion
1 2 1 & 2 3 3 1, 2, & 3 1, 2, & 3 4 1 & 4
CMX Chime Module

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 3
Programming Button and Adjustment Dial Functions
You can press and hold the programming button on the side of the interface to access different programming modes. Once the
LED is lit to the mode you desire (see below for modes), immediately release the programming button to access that mode.
PLEASE NOTE:
• This process must be done with the interface in the vehicle and the key in the ignition position.
A. LED 1 ash green: SWC re-assignment. This allows you to re-assign the SWC functions to the buttons of your
choice. Please see the Optional Steering Wheel Control Programming instructions on Page 4 for more details.
B. LED 1 ash red: Master reset. This does a master reset of the interface and restores the following settings to factory
defaults:
• SWC Mapping
• SWC Calibration
Alpine JVC Kenwood Clarion Pioneer Sony Fusion
Volume + Volume + Volume + Volume + Volume + Volume + Volume + Volume +
Volume - Volume - Volume - Volume - Volume - Volume - Volume - Volume -
Source Source Source Source Source Source Source Source
Track + Track + Track + Track + Search + Track + Track + Track +
Track - Track - Track - Track - Search - Track - Track - Track -
Voice Mute Mute Mute Mute Mute Mute Mute
Play/Pause Preset + Preset/Disc - Disc/FM+ Band Preset + Preset + Audio
Default Steering Wheel Control Programming
Default SWC Button Assignments
Optional Steering Wheel Control Programming
Aftermarket Mode
• OnStar control through the SWC Mute button is disabled.
This will free up the Mute button to send mute radio
command and a second function.
Factory Mode
• The SWC Mute / Voice buttons are programmed to control
OnStar. They cannot be programmed for short press / long
press dual command functionality and are blocked from
doing so.

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 4
Use the function chart on the next page as a guide to program the functions in the proper order for your new radio
1. Turn the key to the ignition position.
2. Press and release the programming button on the side of the interface the number of times that corresponds with either
factory or aftermarket mode. One press will set factory mode and two presses will set aftermarket mode. The LED will blink
each time the button is pressed.
3. Once you have chosen either factory or aftermarket mode, after 2.5 seconds the LED will come on solid. At this point you
have two options:
A. To restore the SWC to factory default settings: Simply wait 7 seconds and the LED will blink 3 times indicating
the interface has timed out. The default settings are now restored and no further action is required.
B. To program custom SWC assignments: Proceed to step 4
4. With the LED on, press the rst button to be learned on the steering wheel, the LED will turn off. 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.
5. If you need to program more buttons, repeat step 3 for each additional audio function on the steering wheel.
6. 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.
7. Once programming is completed, wait seven seconds. The LED will ash three times indicating end of programming.
8. 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.
Alpine
JVC
Kenwood
Clarion
Other *
Pioneer
Sony
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 +
Play
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 -
Power
9
Power
Select
Disc / AM -
Send
Band
Band
Band
10
Enter / Play
Attenuation
Answer
End
Answer **
Phone Menu
Power / End Call
11
Band / Program
Phone Receive
Voice
Voice
End **
Answer Call
Voice / Answer / End Call
12 Receive Phone Reject On Hook PTT ** End Call Voice (Android Auto & Car
Play) Answer / End Call***
13
End
Voice
Off Hook
Voice
14
Voice
Power
Mute
15 Preset +
* Dual / Axxera, Jensen, Rockford Fosgate ** Jensen ONLY ***
XAV-AX100 / 200 Only
Optional Programming Order
Optional Steering Wheel Control Programming (cont.)
Testing and Verication
1. Turn the ignition on. LED 1 will illuminate red and the +12v accessory wire will turn on.
2. Turn on the radio and check chimes, volume, balance, and fader.
3. Verify that all SWC buttons are functioning properly for both the aftermarket radio and OnStar. To adjust OnStar volume,
press the OnStar button on the mirror then use the volume buttons on the SWC, or the adjustment dial on the side of the
module to adjust the level. When you hear a chime during this process it means you have reached the farthest minimum /
maximum level.
4. Pressing the OnStar button on the rearview mirror will turn off the rear speakers and allow the OnStar audio to be heard in
the two front speakers. The OnStar active LED 2 will also turn on. When OnStar disconnects, the radio will un-mute or turn
back on and the OnStar LED will turn off. Pressing the VR / OnStar button on the steering wheel will also activate OnStar.
5. Turn off vehicle and remove key. RAP will be active and keep the radio on for 10 minutes or until any door is opened.
6. The LED 1 and radio will turn off when RAP turns off or until any door is
opened.
7. Use the 4-position selector switch located on the side of the CMX chime
module to select the best chime output volume for your specic installation.
Setting 1 being loudest and 4 being softest.
CMX
chime module
1
4
2
3

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 5
Rear Seat Entertainment (RSE); If equipped
Using the Radios Dual Zone Source
• Press the power button to turn the RSE Controls on. When Radio is displayed on the RSE Controls, the aftermarket radios rear
speaker output will be heard through the headphone jacks. Putting the aftermarket radio into dual zone mode should change the
output level of the rear speakers to a xed level. This allows precise user adjustment from the level knobs on the RSE Controls
(refer to aftermarket radio owners manual for model specic dual zone operation).
• The seek arrows and PROG button will control the radio as programmed by the SWC interface. These buttons are mapped to
the SWC buttons as stated above.
• Pressing the SRCE button will toggle between the Factory XM tuner and the Radio as the RSE source. Pressing the power
button will turn the RSE Controls off as well as turning the key off. The seek arrows and PROG button will continue to operate as
stated (with the exception of SRCE which has no function) when the Rear Seat Controls are turned off.
Turns the
Rear Seat
Controls On
or Off
Change between
Factory XM tuner
and Dual Zone
Radio Source
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
and Bar Button)
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
Down Button)
Controls the
Radio as
Programmed
by the SWC
interface (Mapped
to the Arrow
Up Button)
Radio
Rear Seat Entertainment (RSE); If equipped
1. Vehicles equipped with an overhead screen only:
In this application the GMRVD2 must be used in order to feed A/V into the factory screen from an aftermarket head unit (head
unit must support A/V out). With the GMRVD2, A/V will be passed from the aftermarket head unit to the rear screen and audio
can be heard through the headphones. The GMRVD2 will also pass the Auxiliary inputs on the rear of the center console to the
aftermarket head unit.
2. Vehicles equipped with an overhead screen AND headrest monitors:
In this application the headrest monitors will function independently from the overhead monitor. Neither video or audio
can be passed to or from the headrest monitors. The overhead monitor will function exactly as described in #1.
OnStar Volume Adjustment for Vehicles w/o SWC
Adjustment Dial
1. When OnStar is active use the adjustment dial on the side
of the module to raise or lower the OnStar volume to the
desired level.

RP5-GM32
Radio Replacement Interface with
Steering Wheel Control and Telematics Retention
For select General Motors Vehicles
With 29 Bit Data Systems
© 2021 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Rev: V1
Date: 12/17/2021 Page 6
Firmware Updates
The RadioPRO PC app will allow you to update the interface with new rmware as it becomes available. Please visit
https://pac-audio.com/rmware-updates/ for available updates.
Connect the interface to your PC and select ”Firmware”, then “Update Firmware”. Now select “Select File”. Finally, browse to the
place where you saved the le and select it. This will begin the updating process. Once nished, disconnect the interface from
the PC and test operation.
Email: [e-mail]
Toll Free: 866-931-8021
Standard / International: 727-592-5991
Technical Support
RadioPRO PC App