Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.0206201 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

- Retains factory features in select GM Class II Data Bus vehicles while functioning with an aftermarket radio.- Pre-programmed to retain factory Steering Wheel Controls.- Voice Recognition Command from factory SWC.- Supports Bose, non-Bose and Y-91 audio systems.- Retains chime functions.- Built-in chime volume adjustment.- EIA color coded wiring for easy installation.

PRODUCT FEATURES:

PARTS INCLUDED:

INSTALLATION DIAGRAM:

SWRGM-48 MODULE SWRGM-48 HARNESS SWC CABLE

AFTERMARKETRADIO

Reverse Red/WhiteIllumina�on (+) Orange

Amplifier Turn-on Blue/ White+12V Constant Yellow

+12V ACC RedGround Black

Right Front (+) GrayRight Front (-) Gray/BlackLe� Front (+) WhiteLe� Front (-) White/Black

Right Rear (+) VioletRight Rear (-) Violet/BlackLe� Rear (+) GreenLe� Rear (-) Green/Black

TO FACTORYHARNESS

16-Pin BlackConnector

Non Bose Bose

See below for Audioconnection options

24-PinConnector

1 2 3

ON

AFTERMARKETRADIO SELECTOR

(See Chart)

Option A:

Option B:

Cap or insulate ifnot being used

BLUE / YELLOW

3.5MM SWC CABLES (Option A or B)Use the proper 3.5MM to 4-Pin cable for yourradio. Plug in the selected 3.5MM SWC cableto the 4-pin port on the module. See “DIPSWITCH SETTINGS” section.

Insulate with tapeif not being used

Chime volumeadjustment

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.020620

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

2 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

DIP SWITCH SETTINGS:

AFTERMARKET RADIO DIP SWITCH SETTINGS:

RADIO BRAND: DIP#: 1 2 3

Atoto, Dual, Fahrenheit, JensenPioneer, Power Acoustik, SoundstreamBlaupunkt, Most o�-brand RadioAlpineClarionKenwoodJVCBoss, Old SonyNew Sony

OFF ON ONOFF ON ONOFF ON ONOFF OFF OFFON ON OFFON ON ONON OFF ONON OFF OFFOFF ON OFF

SWC MODULEDIP SWITCH

1 2 3

ON

NOTE: For Atoto, Blaupunkt, Dual, Farenheit, Power Acoustik, Soundstream, and most o�-brand radios, check the aftermarket radio’s manual to see if the SWC buttons need to be programmed.

4-PIN SWC CABLE

Use the proper 3.5MM to 4-Pin SWC cable for the aftermarket radio you are using.

OPTION A is used for ALPINE, CLARION. Use the Blue/Yellow wire for JVC and KENWOOD units.OPTION B is used for ATOTO, BLAUPUNKT, BOSS, DUAL, FARENHEIT, JENSEN, POWER ACOUSTIK,

PIONEER, SONY, SOUNDSTREAM and Most Off-Brand Radios.

NOTE: Cap or insulate the 3.5mm plug or Blue/Yellow wire if not being used.

SELECTING THE AUDIO SYSTEM:

If the vehicle is equipped with an amplified audio system, the SWRGM-48 has a built-in audio level adaptor that outputs the proper audio level from the aftermarket radio to the factory amplifier. To use this feature, plug in the male 8-pin connector on the SWRGM-48 harness to the GRAY female 8-pin connector on the SWRGM-48 module. The module is also labeled “Bose” and “Non Bose” to avoid confusion. (see picture below)

If the vehicle is NOT equipped with a factory amplified system, plug in the male 8-pin connector to the BLACK female 8-pin on the SWRGM-48 module.

BOSE(Amplified)Connection

NON BOSE(Non-Amplified)

Connection

RED to SWC Key 1WHITE to SWC Key 2SHIELD to SWC Ground

For aftermarket radios that have wires for SWC connections, cut off the 3.5mm plug on the Crux SWC Cable (option B) and connect the SWC wires as follows:

Note that there are some radios that only have SWC1 and SWC2, in this case “shield” does not need to be connected.

Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.020620

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

3 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

The SWRGM-48 has a potentiometer to adjust the chime volume. It is set at half way by default. To adjust the volume, simply use a suitable screw driver and turn the potentiometer clockwise to increase the volume and counter-clockwise to decrease the volume.

ChimeVolume

Adjustment

CHIME VOLUME ADJUSTMENT:

STEERING WHEEL CONTROL BUTTON FUNCTIONS:

SWC Button SHORT PRESS LONG PRESSVOL +VOL -AM/FMPreset

NOTES:

Step IncrementStep DecrementSourceActivate VR /

To Deactivate VR =on Pioneer, press “PRESET”on JVC = say “Cancel”

Continuous VOL +Continuous VOL – Pick Up CallEnd Call

To Deactivate VR = on Kenwood, long press of PRESET

4 BUTTON SWC

SWC Button SHORT PRESS LONG PRESS ALPINEVOL +VOL -Seek Up pSeek Down qSource UpSource DownProgVoice

Step IncrementStep DecrementSeek Up Seek DownPick up CallSource

Continuous VOL +Continuous VOL – N/AN/AEnd CallN/A

4 BUTTON SWC

SWC Button SHORT PRESS LONG PRESSCLARIONVOL +VOL -Seek Up pSeek Down qSource UpSource DownProgVoice

Step IncrementStep DecrementPreset Up Preset DownPick up CallSourceMuteMute

Continuous VOL +Continuous VOL – N/AN/AEnd CallN/AN/AN/A

Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.020620

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

4 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

SWC Button SHORT PRESS LONG PRESSJVCVOL +VOL -Seek Up Seek Up pSeek Down qSource DownProgVoice

NOTE:

Step IncrementStep DecrementSeek Up Seek DownPick up CallSourceActivate Voice RecognitionActivate Voice Recognition

Say “CANCEL” to Deactivate VR

Continuous VOL +Continuous VOL – N/AN/AEnd CallN/AN/AN/A

SWC Button SHORT PRESS LONG PRESSKENWOODVOL +VOL -Seek Up pSeek Down qSource UpSource DownProgVoice

NOTE:

Step IncrementStep DecrementSeek Up Seek DownPick up CallSourceActivate Voice RecognitionActivate Voice Recognition

BT Inactive, Source Up Activate Call History

Continuous VOL +Continuous VOL – Tune UpTune DownEnd Call, Deactivate VRN/ADeactivate VRN/A

SWC Button SHORT PRESS LONG PRESSPIONEERVOL +VOL -Seek Up pSeek Down qSource UpSource DownProgVoice

Step IncrementStep DecrementPreset Up Preset DownPick up CallSourceActivate Voice RecognitionActivate Voice Recognition

Continuous VOL +Continuous VOL – N/AN/AEnd CallN/ADeactivate VR, End CallDeactivate VR

Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.020620

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

5 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

SWC Button SHORT PRESS LONG PRESSALPINEVOL +VOL -Mode / PlayMUTESeek Up pSeek Down qType Seek / BandPreset / 1-6

Step IncrementStep DecrementSourceAttenuationSeek Up Seek DownPick up Call

Continuous VOL +Continuous VOL – N/AN/AN/AN/AN/AEnd Call

SWC Button SHORT PRESS LONG PRESSCLARIONVOL +VOL -Mode / PlayMUTESeek Up pSeek Down qType Seek / BandPreset / 1-6

Step IncrementStep DecrementSourceMutePreset Up Preset DownPick up CallN/A

Continuous VOL +Continuous VOL – N/AN/AN/AN/AEnd CallN/A

SWC Button SHORT PRESS LONG PRESSJVCVOL +VOL -Mode / PlayMUTESeek Up pSeek Down qType Seek / BandPreset / 1-6

NOTE:

Step IncrementStep DecrementSourceMuteSeek Up Seek DownPick up CallActivate Voice Recognition

Say “CANCEL” to Deactivate VR

Continuous VOL +Continuous VOL – N/AN/AN/AN/AEnd CallN/A

ANALOG SWCBUICK – Century, LaCrosse, Rainier, Rendevous, TerrazaCHEVROLET – Corvette, Impala, Monte CarloOLDSMOBILE – Alero, Bravada, SilhouettePONTIAC – Aztec, Grand Am, Grand Prix, Montana, Sunfire

Crux Interfacing Solutions • 21541 Nordhoff St., Unit C, Chatsworth, CA 91311phone: (818) 609-9299 • fax: (818) 996-8188 • www.cruxinterfacing.com

rev.020620

SWRGM-48Radio Replacement Interface with Steering Wheel Control

Retention for select GM Class II Vehicles

6 of 6

RADIO REPLACEMENTSWC RETENTION

+R

INTERFACING SOLUTIONS

SWC Button SHORT PRESS LONG PRESSKENWOODVOL +VOL -Mode / PlayMUTESeek Up pSeek Down qType Seek / BandPreset / 1-6

Step IncrementStep DecrementSourceAttenuationSeek Up Seek DownPick up CallActivate Voice Recognition

Continuous VOL +Continuous VOL – N/AN/AN/AN/AEnd Call, Deactivate VRN/A

SWC Button SHORT PRESS LONG PRESSPIONEERVOL +VOL -Mode / PlayMUTESeek Up pSeek Down qType Seek / BandPreset / 1-6

Step IncrementStep DecrementSourceMutePreset Up Preset DownPick up CallActivate Voice Recognition / Deactivate Voice Recognition

Continuous VOL +Continuous VOL – N/AN/AN/AN/AEnd CallN/A

VEHICLE APPLICATIONS:

Buick2004-20052005-20072004-20072003-20072005-2007

Century*LaCrosse*Rainier*Rendezvous*Terraza*

Cadillac2003-2006 Escalade

Chevrolet2003-20062000-20052004-20132005-20132004-20072000-20052001-20032000-20052003-20042003-200620072003-20062003-20062003-20062002-20092005-20082003-2005

AvalancheCavalierColoradoCorvette*ExpressImpala*MalibuMonte Carlo*S-10SilveradoSilverado ClassicSSRSuburbanTahoeTrailblazerUplanderVenture

GMC2004-20112002-20092003-20072003-200620072003-2006

CanyonEnvoySavanaSierraSierra ClassicYukon

Hummer2003-20072005-2010

H2H3

Isuzu2003-2008 Ascender

Oldsmobile2001-20042002-20042000-2004

Alero*Bravada*Silhouette*

Pontiac2001-20052001-20052004-20082000-20062000-2005

Aztec*Grand Am*Grand Prix*Montana*Sunfire*

Saab2005-2008 9-7X

Saturn2005-2007 Relay

*Analog Steering Wheel Controls. See pages 5 and 6 for SWC button functions.