CRUX CS-GM31L Radio Replacement Interface Module Instruction Manual

June 4, 2024
CRUX

CRUX CS-GM31L Radio Replacement Interface Module

CRUX CS-GM31L Radio Replacement Interface Module
PRODUCTPRODUCT 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

CRUX CS-GM31L Radio Replacement Interface Module FIG
1

INSTALLATION DIAGRAM

CRUX CS-GM31L Radio Replacement Interface Module
FIG 2

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.
| |
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 SETTINGSCRUX CS-GM31L Radio Replacement
Interface Module FIG 10

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

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NOTE:
Does not retain Bose amplifier.

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