DKGM-49A - Car audio accessory CRUX - Free user manual and instructions

Product Type	Car Stereo Installation Kit / Interface
Brand	CRUX
Model	DKGM-49A
Compatible Vehicles	Select General Motors models (2000-2010)
Radio Size Supported	Double DIN (4" height)
Main Functions	Retains factory chimes, RAP, SWC, OnStar, and data bus
Power Handling	Passive (no external power required)
Wiring	Plug-and-play harnesses included
Dimensions (approx.)	7 x 4.5 x 1.5 inches
Weight	0.5 lbs
Installation Difficulty	Easy to moderate, DIY-friendly
Included Components	Dash kit, wiring harness, antenna adapter, installation guide
Materials	High-grade ABS plastic, brass terminals
Maintenance	Wipe with dry cloth; no special care required
Safety	Disconnect vehicle battery before installation
Repairability	Non-repairable; replace unit if damaged
Certifications	CE, RoHS compliant
Warranty	1-year limited warranty

Frequently Asked Questions - DKGM-49A CRUX

What is the CRUX DKGM-49A?

It is a car stereo installation kit designed for select General Motors vehicles. It allows you to install an aftermarket radio while retaining factory features like chimes, OnStar, and steering wheel controls.

Which vehicles are compatible with DKGM-49A?

Typically fits GM models from 2000-2010 such as Chevrolet Silverado, GMC Sierra, Tahoe, Suburban, Yukon, and similar. Check the fit guide for exact compatibility.

Does this kit retain factory steering wheel controls?

Yes, the DKGM-49A is designed to retain steering wheel control (SWC) functionality when used with a compatible aftermarket radio.

Does it support OnStar and factory chimes?

Yes, the module preserves OnStar, chimes, and RAP (Retained Accessory Power) functions.

Is the DKGM-49A plug-and-play?

Mostly yes. It includes plug-and-play harnesses that connect directly to the vehicle’s wiring. Some minimal wiring may be needed for certain aftermarket radios.

Do I need additional parts besides this kit?

You may need a radio-specific wiring harness for your aftermarket radio (if not included), and possibly an antenna adapter or dash trim tools.

What tools are required for installation?

Basic hand tools like screwdrivers, panel removal tools, wire cutters/strippers, and a multimeter are recommended.

Can I install this kit myself?

Yes, with moderate DIY skills. Follow the included installation guide carefully. Disconnect the battery before starting.

What is the warranty on the DKGM-49A?

CRUX offers a 1-year limited warranty against defects in materials and workmanship.

Where can I find the user manual?

The manual is available for download on notice-facile.com or the official CRUX website. It includes detailed installation steps and wiring diagrams.

USER MANUAL DKGM-49A CRUX

• 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 2nd incoming call, AVRCP Track, Seek.
• Supports Bose, non-Bose and Y-91 audio systems.
• Retains chime functions.
• Provides Factory Rear Seat Entertain ment Activation. Requires Cable #CRUX2444A (sold separately).
• Retains factory back-up camera.
• EIA color coded wiring for easy installation.

PARTS INCLUDED:

GM-49A Module

GM-49A Harness

SWC Cables

Antenna Adaptor

CRUX2444

Dash Kit

INSTALLATION DIAGRAM:

graph TD
    A["TO FACTORY HARNESS"] --> B["16-Pin Black Connector"]
    B --> C["CRUX"]
    C --> D["Mini USB for Software Updates"]
    D --> E["3.5MM SWC CABLES (Option A or B)"]
    E --> F["LED LIGHT"]
    E --> G["LED MODULE FEEDBACK"]
    E --> H["LED Light"]
    E --> I["LED MODULE FEEDBACK"]
    E --> J["LED Light"]
    E --> K["LED MODULE FEEDBACK"]
    E --> L["LED Light"]
    E --> M["LED MODULE FEEDBACK"]
    E --> N["LED Light"]
    E --> O["LED MODULE FEEDBACK"]
    E --> P["LED Light"]
    E --> Q["LED MODULE FEEDBACK"]
    E --> R["LED Light"]
    E --> S["LED MODULE FEEDBACK"]
    E --> T["LED Light"]
    E --> U["LED MODULE FEEDBACK"]
    E --> V["LED Light"]
    E --> W["LED MODULE FEEDBACK"]
    E --> X["LED Light"]
    E --> Y["LED MODULE FEEDBACK"]
    E --> Z["LED Light"]
    E --> AA["LED MODULE FEEDBACK"]
    E --> AB["LED Light"]
    E --> AC["LED MODULE FEEDBACK"]
    E --> AD["LED Light"]
    E --> AE["LED MODULE FEEDBACK"]
    E --> AF["LED Light"]
    E --> AG["LED MODULE FEEDBACK"]
    E --> AH["LED Light"]
    E --> AI["LED MODULE FEEDBACK"]
    E --> AJ["LED Light"]
    E --> AK["LED MODULE FEEDBACK"]
    E --> AL["LED Light"]
    E --> AM["LED MODULE FEEDBACK"]
    E --> AN["LED Light"]
    E --> AO["LED MODULE FEEDBACK"]
    E --> AP["LED Light"]
    E --> AQ["LED MODULE FEEDBACK"]
    E --> AR["LED Light"]
    E --> AS["LED MODULE FEEDBACK"]
    E --> AT["LED Light"]
    E --> AU["LED MODULE FEEDBACK"]
    E --> AV["LED Light"]
    E --> AW["LED MODULE FEEDBACK"]
    E --> AX["LED Light"]
    E --> AY["LED MODULE FEEDBACK"]
    E --> AZ["LED Light"]
    E --> BA["LED MODULE FEEDBACK"]
    E --> BB["LED Light"]
    E --> BC["LED MODULE FEEDBACK"]
    E --> BD["LED Light"]
    E --> BE["LED MODULE FEEDBACK"]
    E --> BF["LED Light"]
    E --> BG["LED MODULE FEEDBACK"]
    E --> BH["LED Light"]
    E --> BI["LED MODULE FEEDBACK"]
    E --> BJ["LED Light"]
    E --> BK["LED MODULE FEEDBACK"]
    E --> BL["LED Light"]
    E --> BM["LED MODULE FEEDBACK"]
    E --> BN["LED Light"]
    E --> BO["LED MODULE FEEDBACK"]
    E --> BP["LED Light"]
    E --> BQ["LED MODULE FEEDBACK"]
    E --> BR["LED Light"]
    E --> BS["LED MODULE FEEDBACK"]

DIP SWITCH SETTINGS:

SETTING THE AFTERMARKET RADIO BRAND

With the key in the off position, set the DIP switches to the corresponding radio listed below.

RADIO BRAND:	DIP#:	1	2	3
Atoto, Dual, Fahrenheit, Jensen		OFF	ON	ON
Pioneer, Power Acoustik, Soundstream		OFF	ON	ON
Blaupunkt, Most off-brand Radio		OFF	ON	ON
Alpine		OFF	OFF	OFF
Clarion		ON	ON	OFF
Kenwood		ON	ON	ON
JVC		ON	OFF	ON
Boss, Old Sony		ON	OFF	OFF
New Sony		OFF	ON	OFF

SWC MODULE DIP SWITCH

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

3.5MM SWC CABLE

Use the proper 3.5 to 4 pin SWC cable for the aftermarket radio being used:

OPTION A is used for ALPINE, CLARION, (JVC and KENWOOD units will use the Blue/Yellow wire). OPTION B is used for ATOTO, BOSS, DUAL, FAHRENHEIT, JENSEN, POWER ACOUSTIK, PIONEER, SONY, SOUND STREAM and most OFF-BRAND radios.

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

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:

Pure electrical circuit lines without any symbols

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

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

SELECTING THE AUDIO SYSTEM:

If the vehicle is equipped with a Bose system, the DKGM-49A module 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 DKGM-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.

CHIME VOLUME ADJUSTMENT:

The DKGM-49A module has a potentiometer to adjust the chime volume. It is set at halfway by default. To adjust the volume, simply use a suitable screwdriver and turn the potentiometer clockwise to increase the volume and counter-clockwise to decrease the volume.

BACK UP CAMERA CONNECTION:

You can retain use of the factory backup camera by using the CRUX2444 harness provided in the kit. See below for connection instructions. (Note: Loose wires may not be needed in the installation.)

1. Connect the Crux back-up camera 20 pin connector to the vehicle 20 pin conenctor
2. Connect the yellow video RCA to the new aftermarket radio reverse camera input.
3. Test the video feed before installing the radio back into the dashboard. (Radio may need to be set prior to testing).

graph LR
    A["To Factory 20-Pin Connector"] --> B["AV INPUT"]
    A --> C["TO FACTORY OVERHEAD SCREEN"]
    B --> D["To AV Input"]
    C --> E["To AV Output"]

NOTE:

Does not retain the factory backup camera on models that show the camera image on the rearview mirror.

DASH KIT INSTALLATION:

A double DIN radio replacement dash kit is included in the kit to make the installation quick and easy. You have the option of installing a Double DIN or two Single DIN radios. The DKGM-49A kit includes:

Black plastic enclosure with multiple side panels, no visible text or symbols

INSTALLATION:

Before installation:

1. Locate the main trim.
2. Locate the left and right mounting brackets.
3. Slide the appropriate mounting bracket into the trim ring, aligning the holes in the trim ring to the clips on the bracket. (See Diagram B)
4. For two Single DIN radio installation, slide the stacked ISO DIN unit into the trim ring bracket assembly and secure the unit to the kit using the screws supplied with the radio. (See Diagram C)

VEHICLE APPLICATIONS:

CHEVROLET

2012-2013 Avalanche

2012-2014 Silverado 1500-3500 Pickup

2012-2014 Suburban

2012-2014 Tahoe

GMC

2012-2013 Sierra 1500-3500 Pickup

2012-2014 Yukon