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RP5-GM32

Radio Replacement & Steering Wheel Control Interface 

with OnStar Retention for General MotorsVehicles

Pacific Accessory Corporation

®

 | Santa Ana, California 92705 | Ph. 866-931-8021 | [email protected] 

©2012 Pacific Accessory Corporation

www.pac-audio.com

Rev. 053113

Pacific Accessory Corporation

Introduction & Features

Important Notes

Wiring Connection Chart

Illustration / Schematic

The RP5-GM32 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) and the BOSE amplifier when the original radio is removed.  The RP5-GM32 also provides data 

bus driven outputs such as retained accessory power (RAP), vehicle speed sensor (VSS), illumination, reverse trigger 

and parking brake.

1. 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 (see next page for setting chart).

2. 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 to different buttons.  The SWC can always be restored to default settings by pressing 

and releasing the program button on the side of the interface once and waiting 7 seconds for the LED to flash 3 times.

3. RSC buttons that are identical to the SWC will mimic the SWC one for one.
4. The LED will flash whenever a SWC button is pressed.

 Aftermarket Radio Connectioons

Yellow

B12v

Black

Ground

Red

Accessory Output

White

Front L + input

White / Black

Front L - input

Grey

Front R + input

Grey / Black

Front R - input

Green

Rear L + input

Green / Black

Rear L - input

Purple

Rear R + input

Purple / Black

Rear R - input

SWC Connector

Blu/Yel

Kenwwod, Newer 

JVC, OEM or 

Blaupunkt

3.5mm Jack

Alpine, JVC, 

Clarion, Pioneer, 

Sony, Fusion, 

Valor, Boyo, Dual, 

Lightning Audio, 

Visteon or Advent

SWC Connection

See above chart for 
different radio type 
connections

x3

Wiring

SWC Connection

Page 1

Aftermarket 

Radio 

Connections

Vehicle 

Connections

Red / White

Parking Brake 

Output (-)

Purple / White

Vehicle Speed 

Output 

Blue / White

Not Used

Blue

Not Used

Orange / White

Illumination Output 

(+)

Green

Reverse Output (+)

Brown Loop

Mute Loop - 

If 

aftermarket radio is 

equipped with mute wire, 

cut this loop and hook 

the inside brown wire to 

the radios mute wire

Summary of Contents for RP5-GM32

Page 1: ...les factory SWC functions and does not require programming unless you wish to re assign the SWC functions to different buttons The SWC can always be restored to default settings by pressing and releasing the program button on the side of the interface once and waiting 7 seconds for the LED to flash 3 times 3 RSC buttons that are identical to the SWC will mimic the SWC one for one 4 The LED will fl...

Page 2: ...th call is made or received If the aftermarket radio has a mute input cut this loop and connect the outer brown wire to the mute input 8 Connect the SWC wire according to the chart on page 1 aftermarket radio MUST support a wired remote input 9 If you wish to reassign functions to the SWC follow the programming instructions in the next section IMPORTANT The interface comes pre programmed for the f...

Page 3: ...rsor Band Band Ok 10 Enter Play Attenuation Answer End Down Cursor Phone Menu 11 Band Program Phone Receive Voice Dial BT Answer Answer Call 12 Receive Phone Reject On Hook BT Hangup End Call 13 End Voice Dial Off Hook Voice Activation 14 Power Mute only supported on Multimedia units Other Advent Boyo Dual Lightning Audio Visteon Optional Programming Order Step B Press and release the programming ...

Page 4: ...will also activate Onstar 6 Turn off vehicle remove key RAP will be active keep the radio on for 10 minutes or until the drivers door is opened 7 The LED radio will turn off when RAP turns off or the drivers door is opened Page 4 Using the Radios Dual Zone Source 1 Press the power button to turn the RSE Controls on When Radio is displayed on the RSE Controls the aftermarket radios rear speaker out...

Page 5: ...enter console to the aftermarket head unit 2 Vehicles equipped with an overhead screen AND headrest monitors In this application the headrest monitors will function independantly 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 The RP5 GM32 can be updated with new firmware as it becomes avai...

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