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- Retains factory features in select GM LAN 29 Bit trucks and SUVs while functioning with an
aftermarket radio.
- Pre-programmed to retain factory Steering Wheel Controls.
- iPhone Voice Recognition (VR) feature from SWC on select Kenwood, Pioneer, Alpine and JVC
radios.
- Supports Pick Up/End Call, Pick up and Toggle between 1st and 2
nd
incoming call, AVRCP Track,
Seek.
- Supports Bose, non-Bose and Y-91 audio systems.
- Retains chime functions.
- Provides Factory Rear Seat Entertainment Activation. Requires Cable #CRUX2333A
(sold separately).
- Retains factory back-up camera.
- EIA color coded wiring for easy installation.
1. NOT compatible with Express and Savana vans that are powered by a diesel engine.
2. Supports Rear Entertainment System with special order harness #CJA2333A (sold separately).
3. DOES NOT support ONSTAR.
GM-49A Module
GM-49A Harness
SWC Cables
Antenna Adaptor
CRUX2543
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GMC
2012-2013 Sierra 1500-3500 Pickup
2012-2014 Yukon
CHEVROLET
2012-2013 Avalanche
2012-2014 Silverado 1500-3500 Pickup
2012-2014 Suburban
2012-2014 Tahoe
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SETTING THE AFTERMARKET RADIO BRAND
With the key in the off position, set the DIP switches to the corresponding radio listed below.
3.5MM SWC CABLE
The SWRGM-49A Module allows for both types of connections:
OPTION A is used for ALPINE, CLARION, JVC, and KENWOOD units (Blue/Yellow wire is attached)
OPTION B is used for BOSS, DUAL, FAHRENHEIT, JENSEN, POWER ACOUSTIK, PIONEER, SONY and
SOUND STREAM units.
NOTE: Cap or insulate the 3.5mm plug or Blue/Yellow wire if not being used.
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If the vehicle is equipped with a Bose system, the SWRGM-49A has a built-in Bose adaptor that allows the proper
audio input gain from the aftermarket radio to the Bose amplifier. To use this feature, plug in the male 8-pin
connector on the harness to the GRAY female 8-pin connector on the GM-49A module. The module is also labeled
“Bose” and “Non Bose” to avoid confusion. (see picture below)
If the vehicle is NOT equipped with a Bose system, plug in the male 8-pin connector to the BLACK female 8-pin on
the GM-49A module.
The SWRGM-49A 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.
You can retain use of the factory backup camera by using the CRUX2543 harness provided in the kit. See below for
connection instructions. (Note: Loose wires may not be needed in the installation.)
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BOSE
Connection
Non-BOSE
Connection
Chime
Volume
Adjustment
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STEERING WHEEL CONTROL BUTTON FUNCTIONS
SWC Button
SHORT PRESS
LONG PRESS
PIONEER
VOL +
VOL Arrow Up ▲
Arrow Down ▼
SRCE
►I
Voice
Step Increment
Step Decrement
Preset Up
Preset Down
Source
Tune
Pick Up Call
Continuous VOL +
Continuous VOL -
Seek Up
End Call
Power On/Off
Mute On/Off
Activate VR/Deactivate VR
SWC Button
SHORT PRESS
LONG PRESS
ALPINE
VOL +
VOL Arrow Up ▲
Arrow Down ▼
SRCE
►I
Voice
*NOTE:
Step Increment
Step Decrement
Seek Up
Seek Down
Source
Preset
Pick Up Call
To Deactivate VR = Say “CANCEL”
Continuous VOL +
Continuous VOL –
None
End Call
None
ATT On/Off
Activate VR*/Deactivate VR*
BT Mode Active:
Voice = Toggle between 1st and 2nd Call
SWC Button
SHORT PRESS
LONG PRESS
CLARION
VOL +
VOL Arrow Up ▲
Arrow Down ▼
SRCE
►I
Voice
Step Increment
Step Decrement
Preset Up
Preset
Source
None
Pick Up Call
Continuous VOL +
Continuous VOL –
Seek Up
End Call
Power On/Off
Mute On/Off
Mute On/Off
SWC Button
SHORT PRESS
LONG PRESS
JVC
VOL +
VOL Arrow Up ▲
Arrow Down ▼
SRCE
►I
Voice
NOTE:
Step Increment
Step Decrement
Seek Up
Seek Down
Source
Preset
Pick Up Call
To Deactivate VR = Say “CANCEL”
Continuous VOL +
Continuous VOL –
M-Seek Up
End Call
None
Mute On/Off
Activate VR
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SWC Button
SHORT PRESS
LONG PRESS
KENWOOD
VOL +
VOL Arrow Up ▲
Arrow Down ▼
SRCE
►I
Voice
NOTE:
Step Increment
Step Decrement
Seek Up
Seek Down
Source
Preset
Pick Up Call / Call History On/Off
To Deactivate VR = Say “CANCEL”
Continuous VOL +
Continuous VOL -
None
End Call / Deactivate VR
None
ATT On/Off
Activate VR
BOSS Radio SWC Programming
SWC Radio Wiring connection
SWC Key1 (Brown-wire) connect to Female 3.5 mm Jack - Brown wire
SWC Key2 (White-wire) connect to Female 3.5 mm Jack - Brown/White wire
SWC GND (Black-Wire) connect to Radio Negative wire (Black)
Programming the Radio
Press: [SETTING] > [STEER] > [RESET] > [High Z]
Press the Steering Wheel Control (SWC) buttons set the values as listed below:
Vol – [ 4.07]
Vol + [ 3.66]
Seek – [ 3.37]
Seek + [ 2.98]
Mode [1.39]
OFF Hook [ 0.00]
The Value in the bracket [X.XX] will vary and will be used as parameter for each assigned function.
Press: [Assign] > [4.07] > [Vol-], then the [4.07] will be replaced with [ Vol-]
With [Assign] highlighted:
Press: [3.66] > [Vol+], then the [3.66] will be replaced with [Vol+]
Press: [3.37] > [Seek-], then the [3.37] will be replaced with [Seek-]
Press: [2.98] > [Seek+], then the [2.98] will be replaced with [Seek+]
Press: [1.39] > [Mode], then the [1.39] will be replaced with [Mode]
Press: [0.00] > [Call], then the [0.00] will be replaced with [Call]
Press: [Enter] for Save the setting and Exit
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