USER MANUAL ONST-11C CRUX
- Retains factory features in select GM LAN 11 Bit vehicles while functioning with an aftermarket radio.
- Pre-programmed to retain factory Steering Wheel Controls.
- Supports Non-Bose and Bose amplified systems.
- Provides Vehicle Speed Sensor (VSS), Parking Brake and Reverse Outputs.
- Retains factory OnStar®
- Retains chime functions.
- EIA color coded wiring for easy installation.
PARTS INCLUDED:

CS-GM11C MODULE

CS-GM11C HARNESS

SWC CABLES
INSTALLATION DIAGRAM:

flowchart
graph TD
A["TO FACTORY HARNESS"] --> B["24-Pin Connector Harness"]
B --> C["24-Pin Connector"]
C --> D["10-Pin Connector"]
D --> E["SWC DIP"]
E --> F["BOSE NON BOSE"]
F --> G["8-Pin Connector"]
G --> H["Chime Volume Adjustment"]
H --> I["4-Pin Connector"]
I --> J["JVC/Kenwood (Blue / Yellow)"]
J --> K["3.5MM SWC Cable Plug in the 3.5MM SWC cable to the 4-pin port on the module. See "DIP SWITCH SETTINGS" section."]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#cfc,stroke:#333
style D fill:#fcc,stroke:#333
style E fill:#cff,stroke:#333
style F fill:#ffc,stroke:#333
style G fill:#fcc,stroke:#333
style H fill:#ffc,stroke:#333
style I fill:#fcc,stroke:#333
style J fill:#ffc,stroke:#333
DIP SWITCH SETTINGS:
AFTERMARKET RADIO DIP SWITCH SETTINGS:
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.
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, JVC, and KENWOOD units (Blue/Yellow wire is attached) OPTION B is used for 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.
Plug the SWC cable to the ONST-11C module and the 3.5mm plug to the aftermarket radio SWC port or use the Blue/Yellow wire for JVC and Kenwood radios.
SELECTING THE AUDIO SYSTEM:
If the vehicle is equipped with an amplified audio system, the ONST-11C 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 ONST-11C harness to the GRAY female 8-pin connector on the ONST-11C 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 ONST-11C module.

natural_image
Close-up of a black electronic device rear panel with connectors and red arrows pointing to the ports (no visible text or symbols)
NON BOSE
(Non-Amplified)
Connection
BOSE
(Amplified)
Connection
CHIME VOLUME ADJUSTMENT:
The CS-GM11C 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.

VEHICLE APPLICATIONS:
CHEVROLET
2005-2006
Cobalt
2004-2007
Malibu
PONTIAC
2005-2009
G6*
*NOTE: If the 2009 G6 radio has one volume knob in the center of the radio, please use part# ONST-11B instead.
Compatible Radio

natural_image
Interior view of a car dashboard with air conditioners, dials, and a digital display (no readable text or symbols)
2006 Pontiac G6 2005 Chevrolet Malibu

natural_image
Interior view of a car dashboard with digital displays and control knobs (no readable text or symbols)
DIP switch settings for Pioneer receivers:

Location of the switch may vary on the interface (Corner or Middle).
Please note that interfaces with DIP at the end of the LOT# are installed with the switch.
- Set DIP switch to "3V3" position for support of NEW generation Pioneer steering wheel button control.
- Set DIP switch to "5V" position for support of OLD generation Pioneer steering wheel button control.