About the Crux ONST-11B Wiring Interface
Product highlights:
- install a new receiver in select 2006-2011 GM vehicles with 11-bit LAN systems
- retains factory steering wheel controls, OnStar®, and chime functions
- works with factory amplified and non-amplified systems
- provides outputs (parking brake, reverse, Vehicle Speed Sense [VSS]) for NAV receivers
- warranty: 1 year
- MFR # ONST-11B
- Item # 249ONST11B
- California customers: Please click here for your Proposition 65 WARNING.
What's in the box:
Crux ONST-11B Wiring Interface owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Radio replacement interface module
- Wiring harness
- SWC harness
- Installation Instructions
More details on the Crux ONST-11B Wiring Interface

Product Research
Features
Vehicle Compatibility: The CRUX ONST-11B allows replacement of the factory radio with an aftermarket head unit while retaining important factory features in select 2006-2012 General Motors (GM) vehicles with 11-bit LAN systems.
Make | Model | Year |
---|---|---|
Chevrolet | Cobalt | 2007-2010 |
HHR | 2006-2011 | |
Malibu | 2008-2012 | |
Pontiac | G5 | 2007-2010 |
G6 | 2009-2010 | |
Solstice | 2006-2010 | |
Saturn | Aura | 2007-2010 |
Ion | 2007 | |
Sky | 2007 |
Note: If your 2009 Pontiac G6 has two control knobs on the factory radio, then use the CRUX ONST-11C radio replacement interface instead.
Retained Factory Features: The CRUX ONST-11B retains important factory features such as OnStar with Bluetooth hands-free communication, factory amplifier, steering wheel controls, RAP, and warning chimes.
- OnStar System: The ONST-11B will retain the factory OnStar system for emergency communication
- Factory Amplifier: The CRUX ONST-11B retains the factory Bose amplifier and sub with fader control. It also works with non-amplified audio systems.
- Steering Wheel Controls: Your factory steering wheel controls will be retained when installing the ONST1-11B radio replacement interface module (aftermarket radio must also support steering wheel controls). Make sure you connect your radio via the appropriate SWC connector (either blue/yellow wire or 3.5mm jack) and set the dip-switching according to the installation instructions.
- RAP & Warning Chimes: The CRUX ONST-11B allows you to retain all of your vehicle's factory warning chimes, including RAP, with adjustable volume.
Navigation Outputs: To make installation of aftermarket DVD, digital multimedia, and navigation receivers simple and less time consuming the CRUX ONST-11B contains Parking Brake, VSS (Vehicle Speed Sensor), and Reverse Gear outputs.
The Crux ONST-11B Wiring Interface replaces these items:

Axxess GMOS-LAN-04 Wiring Interface
- lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime, audible safety warnings, and the ONSTAR system
- retains the factory amplifiers
- provides parking brake, VSS (Vehicle Speed Sensor), and reverse output connections for navigation receiver installations

Axxess GMOS-LAN-03 Wiring Interface
- Lets you install an aftermarket receiver in select late model GM vehicles without losing the door chime, audible safety warnings, and the ONSTAR system
- supports RAP (Retained Accessory Power)
- includes parking brake, VSS (Vehicle Speed Sensor), and a reverse output when installing a navigation receiver
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Customer Q&A
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Does exactly as described once juice is powered. Retains factory settings with OnStar & other essentials. Works well with steering wheel controls. Nothing lost transitioning to upgraded system. No lag & great response. Thanks Crutch!
Chad from Snoqualmie, WA