Crux SWRGM-49 - User Manual

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Summary

Installation Diagram

Wire Color Coding

Details the wire color coding for various vehicle connections like reverse, illumination, and audio.

SWC Cable Connection

Explains connecting 3.5mm SWC cables to the module for aftermarket radio control.

DIP Switch Settings

Setting Aftermarket Radio Brand

Instructions on setting DIP switches based on the aftermarket radio brand for proper function.

3.5 mm SWC Cable Options

Describes the two options for 3.5mm SWC cable connections based on radio manufacturer.

Audio System Selection

Guide to connecting the module for Bose or non-Bose audio systems in the vehicle.

Steering Wheel Control Functions

Pioneer SWC Functions

Details short and long press functions for Pioneer steering wheel controls.

Alpine SWC Functions

Details short and long press functions for Alpine steering wheel controls.

Clarion SWC Functions

Details short and long press functions for Clarion steering wheel controls.

JVC SWC Functions

Details short and long press functions for JVC steering wheel controls.

Kenwood SWC Functions

Details short and long press functions for Kenwood steering wheel controls.

BOSS Radio SWC Programming

SWC Wiring Connection

Explains wiring connections for BOSS radio SWC programming.

Programming the Radio

Step-by-step guide to programming the radio using SWC buttons.

The CRUX SWRGM-49 is a radio replacement interface designed for GM LAN 29 Bit vehicles manufactured between 2006 and 2015. Its primary function is to allow the installation of an aftermarket radio while retaining several key factory features of the vehicle.

Function Description:

The SWRGM-49 module facilitates the integration of an aftermarket radio into compatible GM vehicles. It ensures that essential factory functionalities, which would otherwise be lost with a radio replacement, continue to operate.

Factory Feature Retention: The interface retains various factory features in select GM LAN 29 Bit vehicles. This includes pre-programmed support for factory Steering Wheel Controls (SWC), allowing the user to manage audio functions directly from the steering wheel.
Steering Wheel Control (SWC) Functionality: The module supports a wide range of SWC commands, including volume control (increment/decrement, continuous), track seek (up/down), source selection, preset navigation, and call management (pick up/end call). For specific radio brands like Pioneer, Alpine, Clarion, JVC, Kenwood, and Boss, detailed short press and long press functions are outlined. For instance, a short press on "VOL +" typically results in a step increment, while a long press yields continuous volume increase.
Voice Recognition (VR): For select radios, the SWRGM-49 supports iPhone Voice Recognition (VR) features directly from the SWC. This enhances hands-free operation and convenience.
Call Management: The interface supports various call management functions, including Pick Up/End Call and the ability to pick up and toggle between a first and second incoming call.
AVRCP Track/Seek: It supports AVRCP (Audio/Video Remote Control Profile) for track and seek functions, allowing control over media playback from the steering wheel.
Audio System Compatibility: The SWRGM-49 is compatible with different audio systems found in GM vehicles, including Bose, non-Bose, and Y-91 audio systems. It features a built-in Bose adapter to ensure proper audio input gain from the aftermarket radio to the Bose amplifier when a Bose system is present.
Chime Functions: The module retains the vehicle's factory chime functions, ensuring that important audible alerts are preserved.
Rear Seat Entertainment (RSE) Activation: The interface provides activation for the factory Rear Seat Entertainment system. This feature requires a separate cable, CRUX2333A, which is sold separately.
Factory Back-up Camera Retention: The SWRGM-49 allows for the retention of the factory back-up camera. This is achieved by connecting the CRUX2543 harness (included in the kit) to the vehicle's 16-pin factory connector and the aftermarket radio's reverse camera input.
EIA Color Coded Wiring: The wiring is EIA (Electronic Industries Alliance) color coded, which simplifies installation by providing a standardized color scheme for different electrical connections.

Important Technical Specifications:

Vehicle Compatibility: Designed for GM LAN 29 Bit vehicles from 2006-2015. Specific compatible models include various Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, Saturn, and Suzuki vehicles.
Rear Entertainment System: Requires harness #CJA2333A (sold separately).
ONSTAR: The device DOES NOT support ONSTAR functionality.
Bose/Non-Bose Selection: The module has distinct connectors for Bose and non-Bose audio systems. A male 8-pin connector plugs into either a GRAY female 8-pin connector (for Bose) or a BLACK female 8-pin connector (for non-Bose) on the GM-49 module.
SWC Cable Options: Two options are provided for 3.5mm SWC cables:
- Option A: Used for Alpine, Clarion, JVC, and Kenwood units (JVC and Kenwood use the Blue/Yellow wire).
- Option B: Used for Boss, Dual, Fahrenheit, Jensen, Power Acoustik, Pioneer, Sony, and Sound Stream units.
Backup Camera Harness: CRUX2543 harness is provided for backup camera retention. It includes connections for Vehicle Speed Signal (GREEN/WHITE), Amplifier Audio Prompt Drain (GND) (BLACK), Amplifier Audio Prompt Signal (+) (PURPLE), and Amplifier Audio Prompt Signal (-) (GRAY).
DIP Switch Settings: A set of DIP switches (1, 2, 3) is used to configure the module for specific aftermarket radio brands (Fahrenheit, Jensen, Pioneer, Power Acoustik, Sound Stream, Alpine, Clarion, Kenwood, JVC, Sony, Boss). The settings are clearly defined as ON or OFF for each switch.
BOSS Radio SWC Programming: For BOSS radios, specific programming steps are outlined, involving setting values for Vol -, Vol +, Seek -, Seek +, Mode, and OFF Hook within the radio's settings menu.

Usage Features:

Ease of Installation: The EIA color-coded wiring and clear installation diagrams aim to make the installation process straightforward.
Configurable for Aftermarket Radios: The DIP switch settings allow the installer to quickly configure the module for a wide range of popular aftermarket radio brands, ensuring compatibility and proper SWC functionality.
Chime Volume Adjustment: A potentiometer on the SWRGM-49 module allows for easy adjustment of the chime volume. Users can turn it clockwise to increase volume or counter-clockwise to decrease it, providing customization to personal preference.
Retained Convenience: By preserving SWC, call management, and backup camera functions, the SWRGM-49 maintains a high level of convenience and safety features that users are accustomed to from their factory radio.
Modular Design: The inclusion of separate harnesses for the main interface and backup camera, along with distinct connections for Bose/non-Bose systems, indicates a modular design that caters to different vehicle configurations.

Maintenance Features:

No specific maintenance features are detailed in the provided manual. The device is primarily an installation component, and its maintenance would typically involve ensuring secure connections and proper DIP switch settings.
Troubleshooting: While not explicitly listed as "maintenance," the detailed instructions for DIP switch settings and wiring connections serve as a guide for initial setup and potential troubleshooting if functions are not operating as expected.
Firmware Updates: The manual does not mention any user-accessible firmware update capabilities. Any updates would likely be handled by the manufacturer or professional installers.

In summary, the CRUX SWRGM-49 is a comprehensive radio replacement interface designed to seamlessly integrate an aftermarket radio into compatible GM vehicles, preserving essential factory features and enhancing the overall in-car entertainment experience.