CRUX CS-GM31L Radio Replacement Interface Module
PRODUCT FEATURES
- Retains factory features in select GM LAN V2 (LIN) Bus vehicles while functioning with an aftermarket radio.
- Retains chime functions.
- Retains factory Steering Wheel Controls.
- Provides Factory Rear Seat Entertainment activation. Requires part#CRUX2333A (sold separately)
- Retains factory backup camera.
- Retains RAP (Retained Accessory Power).
PARTS INCLUDED
INSTALLATION DIAGRAM
INSTALLATION INSTRUCTIONS
| 1. Connect the aftermarket radio’s power/speaker harness to the
CS-GM31L T-Harness using the Installation Diagram on page 1. Use good quality crimp caps or butt splice for a secure connection. Solder and heat shrinking the connections is highly recommended |
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| 2. Carefully remove the radio trim with a plastic pry tool and pull outward. | 3. Remove the radio bezel by removing the 4 screws on the corners. | |
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| 4. Unplug the GREEN and GRAY connectors from the headunit. | 5. Plug the GREEN and GRAY connectors to the CS-GM31L T-Harness. | 6. Plug in the antenna adapter (sold separately) between the factory antenna connector and the aftermarket radio antenna port. |
| 7. Remove plastic trim under the steering wheel column and locate a GREEN/BLACK wire in the bundle. Tap the GREEN/BLACK from the SWC Cable. We recommend soldering the wires together for a reliable connection. |  |
8. Use a dash kit (not included) for a clean install. Test the radio for functionality. Test the chime and Retained Accessory Power (RAP) functions. Reverse the process to install the new aftermarket radio. |
DIP SWITCH SETTINGS
AFTERMARKET RADIO DIP SWITCH SETTINGS
NOTE: For 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
Plug in the 3.5MM to 4-Pin SWC cable to the SWC module.
NOTE: Insulate the Blue/Yellow and Green wires if not being used.
VEHICLE APPLICATIONS
| BUICK
2015-2016 ENCORE 2017 ENVISION 2016 LACROSSE 2014-2015 REGAL
CADILLAC 2015-2016 ATS 2014-2015 CTS 2015 ESCALADE 2015-2016 SRX 2017 XT5 |
CHEVROLET
2016-2018 CAMARO (with 8” Screen (IO5/IO6) 2015-2016 COLORADO 2016 CRUZE 2014-2016 IMPALA 2016 MALIBU 2018 MALIBU (with 8” Screen (IO5/IO6) 2014-2017 SILVERADO 2018 SILVERADO (with 8” Screen (IO5/IO6) 2015-2017 SILVERADO HD 2016 SONIC 2015, 2018 SPARK 2015-2018 SUBURBAN 2015-2018 TAHOE |
GMC
2017 ACADIA (with 8” Screen (IO5/IO6) 2015-2016 CANYON 2014-2016 SIERRA 2017-2018 SIERRA (with 8” Screen (IO5/IO6) 2015-2017 SIERRA HD 2015-2018 YUKON 2015-2017 YUKON XL |
NOTE:
Does not retain Bose amplifier.
Documents / Resources
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CRUX CS-GM31L Radio Replacement Interface Module [pdf] Instruction Manual CS-GM31L, Radio Replacement Interface Module, CS-GM31L Radio Replacement Interface Module, Interface Module, Module |
