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PAC RP5-GM51 Wiring Interface

Connect a new car stereo and retain steering wheel controls, safety warning chimes, and OnStar in select 2014-up GM vehicles

Item # 541RP5GM51

PAC's RP5-GM51 wiring interface lets you replace the factory radio in select 2014-up General Motors vehicles,...

Find what Fits your car

PAC's RP5-GM51 wiring interface lets you replace the factory radio in select 2014-up General Motors vehicles,...

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Item # 541RP5GM51

In stock
$129.99

About the PAC RP5-GM51 Wiring Interface

PAC's RP5-GM51 wiring interface lets you replace the factory radio in select 2014-up General Motors vehicles, and still retain your factory warning chimes and your steering wheel audio controls. The interface also works with the OnStar system and the front/rear park assist. If you're installing a navigation receiver, this interface provides retained accessory power (RAP), vehicle speed sensor (VSS), and other crucial connections. Warranty: 1 year.

PAC's RP5-GM51 wiring interface lets you replace the factory radio in select 2014-up General Motors vehicles, and still retain your factory warning chimes and your steering wheel audio controls. The interface also works with the OnStar system and the front/rear park assist. If you're installing a navigation receiver, this interface provides retained accessory power (RAP), vehicle speed sensor (VSS), and other crucial connections. Warranty: 1 year.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this interface is compatible with your vehicle.

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What's in the box:

  • Radio replacement/SWC interface module (for GM LAN 29-bit databus)
  • Chime module
  • (CMX)
  • Vehicle harness (RP5-GM51-HAR)
  • Radio harness
  • SWC harness (4-pin connector to 3.5mm/blue wire)
  • Antenna adapter
  • Instructions
MFR #RP5-GM51

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More details on the PAC RP5-GM51 Wiring Interface

Stacey B.
The PAC RP5-GM51 Wiring Interface replaces these items:

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Features

Radio Replacement Interface: The PAC RP5-GM51 interface allows an aftermarket head unit replacement of the factory navigation or non-navigation radio in select General Motors vehicles with 29-bit GM-LAN databus system. Using this interface will retain factory features such as OnStar, Park Assist, steering wheel controls (SWC), and Warning Chimes, when the original radio is removed. The RP5-GM51 also provides data bus driven outputs such as retained accessory power (RAP), vehicle speed sensor (VSS), illumination, reverse trigger, and parking brake.

  • OnStar: 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.
  • Retained Accessory Power (R.A.P.): The ignition power source of many GM vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The RP5-GM51 will retain this feature.
  • Warning Chimes: The PAC RP5-GM51 will retain your vehicle's factory warning chimes through the included external chime module.
  • Navigation Outputs: The PAC radio replacement interface provides a VSS (vehicle speed sense), Parking Brake, Mute, and a Reverse Gear output to make installing an aftermarket Navigation radio simpler and less time consuming.
  • Park Assist Retention: You get to keep your vehicle's factory front & rear park assist functionality. If you wish to retain the factory reverse camera you must solder an RCA end onto the factory backup camera signal wires.
  • Steering Wheel Control (SWC): The PAC radio replacement interface lets you keep your GM vehicle's OEM steering wheel controls (no additional adapter required, but some hardwiring in the vehicle's dash is required). You even get to program two radio functions to each SWC button by using short press long press dual command functionality.
  • Auxiliary Input: The PAC radio replacement interface also allows you to retain the factory AUX Input jack. The included set of RCA plugs will pass the audio from the factory input jack to your aftermarket radio. Note: The aftermarket radio must have an Aux or Audio input for this to work.
Note: This interface does not retain the vehicle's factory Bose audio system; you will need to bypass the Bose factory system. If the vehicle has a factory amplifier (Bose), the speaker wires of this interface will need to be extended and spliced to the wires previously connected to the output of the factory amplifier.

Vehicle Compatibility: The RadioPro4 (RP5-GM51) is compatible with select 2014-2019 GM vehicles fitted with a factory navigation or non-navigation radio, OnStar, and featuring the GM-LAN 29-bit databus system with 20-/16-pin connector harness. Please enter your vehicle information to confirm compatibility.

Make Model Year
Buick Envision 2017
LaCrosse 2016
Regal 2014-2015
Cadillac ATS 2015-2016
CTS 2014-2016
Escalade 2015
SRX 2015-2016
XT5 2017
Chevrolet Camaro 2016-2018
Colorado 2015-2016
Cruze 2018
Impala 2014-2019
Malibu 2016-2018
Silverado 2014-2019
Sonic 2017
Spark 2015, 2018
Suburban 2015-2019
Tahoe 2015-2019
GMC Acadia 2017
Canyon 2015-2016
Sierra 2014-2019
Yukon 2015-2019
Yukon XL 2015-2017, 2019

Radio Select Switch & Programmable SWC: The radio select rotary switch on the side of the interface must be adjusted to the proper radio setting before plugging the interface into the vehicle. The interface comes pre-programmed for all of the vehicle's factory SWC functions and does not require programming, unless you wish to re-assign the SWC functions to different buttons (up to two commands per button). The SWC functions can be easily programmed; see control settings and functions below. The interface retains programming even if your vehicle's battery is disconnected.

Switch Position 1 2 3 4 5 6 7 8
Radio Alpine JVC Kenwood Clarion Valor OEM Dual Pioneer Sony Blaupunkt
Control Functions Volume +/- Volume +/- Volume +/- Volume +/- Volume +/- Volume +/- Volume +/- Volume +/- Volume +/- Volume +/-
Mute Mute Mute Mute Mute Mute Mute Mute Mute Mute
Source Source Source Source Source Source Source Source Source Source
Preset +/- Track +/- Play Search +/- Track +/- Track +/- Preset +/- Preset +/- Preset +/- Track +/-
Track +/- Band/Disc + Track +/- Band Cursor up/down Play/OK Track +/- Track +/- Track +/- Disc +/-
Power Preset/Disc - Disc/FM + Send OK Band Band Band Band OK
Play/Enter Select Disc/AM - End *** Cursor Up /Down *** Phone Menu *** ***
Band/Program Attenuation Answer *** *** Answer/ Hang-up *** Answer Call *** ***
Phone Receive /Reject Phone Receive /Reject Voice Dial *** *** *** *** End Call *** ***
End Voice Dial On/Off Hook *** *** *** *** Voice Activation *** ***
*** Power Mute *** *** *** *** *** *** ***
Note: The SWC harness contains a Blue/Yellow wire and a 3.5mm connector. You will only use one of the connectors, based on your type of aftermarket radio. The Blue/Yellow wire supports Kenwood, Newer JVC, OEM and Blaupunkt radios. The 3.5mm jack supports Alpine, Jensen, Older JVC, Clarion, Pioneer, Sony, Valor, and Dual radios. Not compatible with Soundstream head units.

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

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue Note Used
Blue/White Note Used
Orange/White Illumination
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Purple Right Rear Speaker +
Purple/Black Right Rear Speaker -
Light Green Parking Brake Detection (-)
Pink VSS Output
Purple/White Reverse Output (+)
Brown Mute

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

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