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Axxess GMOS-045 Wiring Interface

Allows you to connect a new car stereo and retain OnStar®, Bluetooth®, and the factory color screen in select 2010-up GM vehicles

Item # 120GMOS045

The GMOS-045 interface by Axxess allows you to install a new car stereo, while retaining your vehicle's factory...

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The GMOS-045 interface by Axxess allows you to install a new car stereo, while retaining your vehicle's factory...

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Item # 120GMOS045

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$289.99
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About the Axxess GMOS-045 Wiring Interface

Axxess GMOS-045

The GMOS-045 interface by Axxess allows you to install a new car stereo, while retaining your vehicle's factory color screen. You'll also keep OnStar (and its Bluetooth features) and the factory backup camera, plus your car's aux input, warning chimes, and Retained Accessory Power (RAP) feature. This interface works in GM vehicles with or without a factory amplifier.

Axxess GMOS-045

The GMOS-045 interface by Axxess allows you to install a new car stereo, while retaining your vehicle's factory color screen. You'll also keep OnStar (and its Bluetooth features) and the factory backup camera, plus your car's aux input, warning chimes, and Retained Accessory Power (RAP) feature. This interface works in GM vehicles with or without a factory amplifier.

The interface provides accessory power for the aftermarket radio and all the connections you need for a DVD or navigation receiver. The interface also includes a prewired harness for the ASWC-1 steering wheel control adapter (sold separately), making it much easier to keep your steering wheel controls. The GMOS-045 is micro USB updatable.

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Product highlights:

  • retains OnStar, Bluetooth, backup camera, aux input, warning chimes, and Retained Accessory Power (RAP)
  • plug-in harness for ASWC-1 steering wheel control adapter
  • retains factory color screen
  • supplies accessory power (12V, 10A)
  • used in amplified or non-amplified systems
  • provides NAV outputs (parking brake, reverse, mute, and speed sense)
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # GMOS-045

What's in the box:

  • Radio replacement interface module
  • Vehicle harness
  • Radio harness
  • Installation Instructions

Customer reviews

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Axxess GMOS-045 Wiring Interface reviews

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Great setup

Dave from Binghamton, NY on 3/5/2019

2014 Chevrolet Cruze

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Great setup! Has a very loud door chime. Not sure if it is bc of this or the headunit but the door chime is now crazy loud. Overall though I love this new setup

Pros: Awesome new operating system for the factory screen

Cons: Loud door chime

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Axxess GMOS-045 Wiring Interface

Dustin from Fostoria, OH on 1/20/2019

2012 GMC Terrain

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Verified employee purchase (What's this?)

Exactly whatever needed for my install. Kept my dash controls and worked perfect! Very easy as well!

Pros: Easy to do and kept my dash lights and control.

Cons: The price was very steep.

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0 of 0 found this helpful

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More details on the Axxess GMOS-045 Wiring Interface

Stacey B.

Product Research

Features

Vehicle compatibility: The Axxess Integrate GMOS-045 allows you to replace the factory radio with an aftermarket stereo while retaining key factory features in select 2010-up GM vehicles.

Make Model Year
Buick
Encore 2013-up
Regal 2011-up
Chevy Cruze 2011-up
Equinox 2010-up
GMC Terrain 2010-up

Amplified & Non-Amplified Systems: The GMOS-045 can be used in the above listed vehicles that have amplified or non-amplified audio systems. The Axxess Integrate radio replacement interface will retain both balance and fade, plus provides gain level adjustment.

Retained Factory Features: The Axxess Integrate GMOS-045 radio replacement interface retains the following factory features.

  • OnStar: The GMOS-045 is designed to retain the factory OnStar emergency services system that would normally be lost when your factory radio is replaced by an aftermarket head unit. The OnStar volume level is adjustable through this interface.
  • Bluetooth: The GMOS-045 radio replacement interface module will retain your vehicle's factory Bluetooth hands-free phone functionality.
  • Factory Color Screen: The Axxess Integrate GMOS-045 will retain your vehicle's factory color screen.
  • Backup Camera: The factory backup camera image continues to display on the factory screen. (The composite video jack on this adapter is an input, used to display an aftermarket camera image on the factory screen.)
  • Aux Input: The radio replacement interface provides retention of your vehicle's factory aux input. To retain the vehicle's factory Aux input, your aftermarket head unit must have a rear-panel Aux input (male mini-to-female stereo RCA adapter may be required, sold separately).
  • Retained Accessory Power (R.A.P.): The ignition power source of many GM vehicles keeps the radio on until one of the doors is opened. This feature is called the R.A.P. (retained accessory power). The GMOS-045 is designed to retain this feature.
  • Warning Chimes: The GMOS-045 retains your vehicle's factory warning chimes. The volume level of the warning chimes is adjustable through this interface.

Optional Steering Wheel Control Adapter: The GMOS-045 features a right-angle 3.5mm connector that lets you keep your vehicle's factory steering wheel controls via the optional Axxess Steering Wheel Control Interface (120ASWC1, sold separately), when installing an aftermarket head unit with a steering wheel control input.

+12V/10A Accessory Output: In many GM vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. The GMOS-045 is designed to provide a 12V/10A switched accessory output (red wire).

Navigation Outputs: In addition, the GMOS-045 provides navigation outputs (VSS, Parking Brake, and Reverse) to help ease the installation process of an aftermarket navigation radio.

Wire Code Chart:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue/white Amp Turn-On
Orange Illumination
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Blue/Pink VSS
Green/Purple Reverse Gear
Light Green Parking Brake
Brown Mute

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I ordered the wrong wire harness kit with my original order. [ Matthew  Jun 01, 2018 ]

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