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PAC RP5-GM31 Wiring Interface

Connect a new car stereo and retain OnStar®, factory amp, Bluetooth®, and steering wheel audio controls in select 2006-up GM models

Item # 541RP5GM31

PAC's RP5-GM31 wiring interface enables you to install a new car stereo and retain useful factory functions in...

Find what Fits your car

PAC's RP5-GM31 wiring interface enables you to install a new car stereo and retain useful factory functions in...

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Top seller

Item # 541RP5GM31

In stock
$119.99

About the PAC RP5-GM31 Wiring Interface

Keep your factory features

PAC's RP5-GM31 wiring interface enables you to install a new car stereo and retain useful factory functions in select 2006-up General Motors vehicles. You can upgrade to the higher sound quality of an aftermarket receiver while maintaining your factory-installed OnStar®, backup cam, amplifier, Bluetooth®, safety warning chimes, Retained Accessory Power (RAP), and rear seat controls. If your vehicle has steering wheel controls and a driver info center, you'll also be able to retain the use of your factory satellite radio tuner.

Keep your factory features

PAC's RP5-GM31 wiring interface enables you to install a new car stereo and retain useful factory functions in select 2006-up General Motors vehicles. You can upgrade to the higher sound quality of an aftermarket receiver while maintaining your factory-installed OnStar®, backup cam, amplifier, Bluetooth®, safety warning chimes, Retained Accessory Power (RAP), and rear seat controls. If your vehicle has steering wheel controls and a driver info center, you'll also be able to retain the use of your factory satellite radio tuner.

Control your new radio

This interface retains the use of your factory steering wheel audio controls with your new car stereo. The interface comes pre-programmed with the factory control functions, or you can reassign the functions of your factory buttons, or even assign two functions to each of your factory buttons. If you're installing a navigation receiver, this interface also features the Vehicle Speed Sensor (VSS), parking brake, and reverse connections you need.

This interface works with aftermarket radios from Kenwood, Alpine, JVC, Clarion, Pioneer, Sony, Fusion, Boyo, Dual, Lightning Audio, Visteon and Advent.

Installation note: This interface will not retain the fader controls on vehicles with the factory premium Bose® audio system.

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Product highlights:

  • works with amplified and non-amplified systems (including Bose audio systems)
  • retains factory steering wheel audio controls (allows dual function for each button)
  • retains factory Bluetooth if equipped (2009-up vehicles)
  • retains factory OnStar if equipped
  • retains LCD display screen and factory amp
  • retains Rear Seat Controls, factory backup cam, Rear Seat Entertainment system (with optional adapter)
  • retains satellite radio in vehicles with steering wheel controls and a driver info center
  • provides Vehicle Speed Sensor (VSS), parking brake, and reverse connections for installing a navigation receiver
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # RP5-GM31

What's in the box:

  • Radio replacement/SWC interface module (for GM LAN 29-bit data-bus)
  • CMX chime module
  • Vehicle harness
  • Radio harness
  • Camera/Center/Sub harness
  • SWC harness
  • Antenna adapter
  • Installation Instructions

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More details on the PAC RP5-GM31 Wiring Interface

Stacey B.
The PAC RP5-GM31 Wiring Interface replaces these items:

Product Research

Features

Radio Replacement Interface: The PAC RP5-GM31 interface allows the replacement of a factory radio in select General Motors vehicles with 29-bit LAN radios. Using this interface will retain factory features such as OnStar, steering wheel controls (SWC), warning chimes, Rear Seat Controls (RSC), factory Satellite Radio and the Bose amplifier when the original radio is removed. The RP5-GM31 also provides data bus driven outputs such as retained accessory power (RAP), vehicle speed sensor (VSS), illumination, reverse trigger and parking brake.

Vehicle Compatibility: The RadioPro4 (RP5-GM31) is compatible with the following 2006-2015 GM vehicles equipped with a factory GM LAN 29-bit Data-bus radio.

Make Model Year
Buick Enclave 2008-2015
Lucerne 2006-2011
Cadillac DTS 2006-2010
Escalade 2007-2014
SRX 2007-2009
Chevrolet Avalanche 2008-2013
Equinox 2007-2009
Express 2008-2013
Impala 2007-2013
Monte Carlo 2006-2007
Silverado 2007-2014
Suburban 2007-2014
Tahoe 2007-2014
Traverse 2009-2017
GMC Acadia 2007-2015
Savana 2008-2013
Sierra 2007-2014
Yukon 2007-2014
Hummer H2 2008-2009
Pontiac Torrent 2007-2009
Saturn Outlook 2007-2010
Vue 2008-2010
Suzuki XL-7 2007-2008

Notes:

  • Chevrolet Express vans & GMC Savannah vans equipped with diesel engines are not compatible.
  • In 2014-up Silverado and Sierra trucks, only compatible with 2500 & 3500 series trucks with non-navigation radios. 1500 series must use the RP5-GM51 (541RP5GM51, sold separately).
  • 2012-up GM trucks and SUVs equipped with factory navigation radios require the RP5-GM32 (541RP5GM32, sold separately).

Amplified or Non-Amplified Systems: The PAC RP5-GM31 can be used in GM vehicles with or without a factory amplified system. Its compatible with Bose, non-Bose, and Y-91 audio systems. In Premium Amplified Systems (Y-91) there will be no fading capability of the aftermarket stereo. Factory sub and center channel will be retained, if your aftermarket head unit its equipped with front & sub preouts. 

OnStar & Bluetooth: This radio replacement interface is designed to retain the factory OnStar emergency services system and turn-by-turn voice prompts that would normally be lost when your factory radio is replaced by an aftermarket head unit. The interface also lets you keep your vehicle's factory installed Bluetooth (2009+ model vehicles with OnStar only).

Steering Wheel Control (SWC): The PAC radio replacement interface lets you keep your GM vehicle's factory steering wheel controls (no additional adapter required). You even get to program two radio functions to each SWC button by using short press long press dual command functionality.

Factory Satellite Radio: The PAC RP5-GM31 allows you to retain your vehicle's factory Satellite Radio tuner with continued text display on the vehicle's factory driver information center (cluster display). In order to retain the factory Satellite Radio tuner, the vehicle must be equipped with steering wheel controls and a driver information center. Your aftermarket head unit must also be equipped with a rear-panel auxiliary input.

Note: The RP5-GM31 is equipped with stereo RCA outputs, so if your radio is not equipped with a stereo RCA aux input but a 3.5mm aux input,  you'll need a stereo RCA-to-minijack adapter (such as the 979YRA154, sold separately).

Backup Camera & Sensor Retention: The interface also retains your vehicle's factory back-up camera. If the factory backup camera displayed on the factory radio, then the backup camera will now display on your new aftermarket receiver's monitor (new aftermarket receiver must have a composite video camera input). If the factory backup camera displays on the rearveiw mirror, the backup camera image will continue to display on the rearview mirror. In addition, you get to keep your vehicle's factory back-up sensor/park assist functionality.

RSE /RSC + Dual Zone: The PAC RP5-GM31 lets you retain the vehicle's factory rear seat controls (RSC) and rear seat entertainment (RSE) for Dual Zone capability with your aftermarket stereo. In order to retain rear seat entertainment (RSE), you will also need the PAC's GMRVD retention harness (127GMRVD, sold separately).

Retained Accessory Power (R.A.P.): The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened; this feature is lost when replacing the factory radio with an aftermarket head unit without the proper installation accessories. The RP5-GM31 is designed to retain the R.A.P. feature and keep the radio powered after the key is off, until the driver door is opened or the factory timer ends; whichever happens first.

Warning Chimes & Messages: The PAC RP5-GM31 retains factory warning & safety chimes via the included chime module. It also retains the vehicle's factory lane departure warning system.

Navigation Outputs: The PAC RP5-GM31 radio replacement interface module provides a VSS (vehicle speed sense), Parking Brake, and a Reverse Gear output to make installing an aftermarket navigation receiver simpler and less time consuming.

Wiring Connection Chart: The included wiring harness features the following hardwire connections.

Wire Color Function Pin #
Red +12 Volt Accessory 21
Yellow +12 Volt Constant 11
Black Ground 22
Blue Note Used 17
Blue/White Amp Turn On 18
Orange/White Illumination 16
White Left Front Speaker + 6
White/Black Left Front Speaker - 9
Gray Right Front Speaker + 7
Gray/Black Right Front Speaker - 8
Green Left Rear Speaker + 2
Green/Black Left Rear Speaker - 4
Purple Right Rear Speaker + 3
Purple/Black Right Rear Speaker - 5
Light Green Parking Brake Detection (-) 15
Pink VSS Output 13
Purple/White Reverse Output (+) 14
Brown Loop Mute 19, 20

RadioPRO App: PAC offers a Windows compatible RadioPRO App software program to help you configure the interface.

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Customer Q&A

12 questions already asked

Q
If i am wiring all of my door speakers to a 4 channel amplifier, will the chime and/or back-up sensors still sound through the speakers with this kit? If not, can I just use the standard non-bose harness to install my aftermarket radio?
[ luis  Aug 28, 2020 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  Sep 10, 2020 ]  Staff
Q
I installed a Sony radio a while back and ordered this kit with it. My radio cuts off and back on ever since I've installed it. I contacted a support rep and they sent me a new radio but it still shuts off. I'm wondering if it's possible that I'm running to much power through this box? May need to wire the amp in on the other side of it? Any tips would be greatly appreciated
[ Jacob  May 06, 2020 ]
2 answers
A
Its shutting of because you have wired the key on power wire to the data link reference wire
[ Marky mark  Jun 04, 2020 ]
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  May 26, 2020 ]  Staff
Q
I'm using this interface and a Sony XAV-AX5000. The rear camera works but, I need to manually select the camera option when backing up. It doesn't automatically open the camera when I'm in reverse. Is there an option or setting that I'm missing?
[ Jack..  Feb 10, 2020 ]
2 answers
A
The Sony should have a reverse trigger wire that when connected to the reverse output wire on this interface, the backup camera feed automatically comes up. If you purchased you gear from us, give our technical support a call as they can help make sure the wiring gets properly connected
[ Paul  Feb 26, 2020 ]  Staff
A
You will need to check the owner's manual for the SonyXAV-AX5000 on how to wire it to the car so it can detect that you are in reverse. Usually it is 1 wire that you connect to the reverse lights in the wiring panel in the vehicle.
[ Thomas  Feb 25, 2020 ]
Q
My traction control and break indicator lights keep coming on. Is there a better description for connecting the interface?
[ Bobby  Jul 17, 2019 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the connections and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "Your Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Jeff  Jul 26, 2019 ]  Staff
Q
How do you turn down the BEEP? It's really loud
[ Jack..  May 13, 2019 ]
2 answers
A
The "beep module" has an adjustment on it. It's the little black box in the middle of the picture on the Crutchfield website. Instructions show how (check online if you don't have them.
[ Glenn  May 13, 2019 ]
A
The white turn dial on the black chime box. Take a small flat head and turn it. Have car on and blinker also. Then adjust the volume.
[ JOHN  May 13, 2019 ]
Q
Will this work with my factory microphone ?
[ George  Apr 16, 2019 ]
2 answers
A
The installer added a microphone with mine. It might work with the factory mic, that's not how they did mine. I would ask before hand if you're having it installed by someone.
[ Edwin  Apr 16, 2019 ]
A
I believe the microphone attaches tot eh head unit not the interface.
[ Boisegolfer  Apr 16, 2019 ]
Q
I was given a kids no name radio and I was curious if this will work with any brand or just the bigger name brand units?
[ Doug  Feb 12, 2019 ]
1 answer
A
Should work with any radio but it's specifically for Impala with onStar I believe.
[ Brandon  Feb 12, 2019 ]
Q
I have the this harness/interface and I'm using the kenwood ddx375bt radio how do I retain my xm radio tuner? I do have steering wheel controls and the dic. Truck is a 2011 Silverado.
[ Paul  May 28, 2018 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  Jun 05, 2018 ]  Staff
Q
What number setting for Boss radio?
[ Michelle  Nov 05, 2017 ]
1 answer
A
I had mine installed at a radio shop
[ mark  Nov 06, 2017 ]
Q
I have a 2012 impala with bose amp. My kenwood i want to install has front/rear/sub rca outputs. The instuction say if u have bose to connect the rp5 rca's to center/ sub outputs. I don't have center but have sub on the kenwood. Do i use these rca's? or not at all?
[ frank ferro  Sep 20, 2017 ]
1 answer
A
For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on how everything connects and what you will need for an installation in your vehicle.
[ Kenny  Sep 20, 2017 ]  Staff
Q
Does this interface also retain the factory rear DVD monitor?
[ E  Feb 27, 2017 ]
1 answer
A
It can retain the rear seat entertainment system when used with the right type of radio and installed with the GMRVD adapter: http://www.crutchfield.com/p_127GMRVD/item.html I recommend contacting an advisor on 1-800-324-9695 to check your aftermarket radio and your vehicle to see if it will work for your setup. My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
[ Paul  Mar 12, 2017 ]  Staff
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