Products

Radio Replacement Interface with Onstar Retention for Class II General Motors Vehicles

$189.00 OS-2X
Radio Replacement Interface With OnStar Retention for Select GM Class II Vehicles with or without BOSE Sound System

OS-2X

Radio Replacement Interface with Onstar Retention for Class II General Motors Vehicles

***THESE INSTRUCTIONS APPLY TO BLUE MODULES ONLY! IF YOU HAVE A BLACK MODULE THEN THERE ARE NO FIRMWARE UPDATES AT THIS TIME.***

INSTALLATION INSTRUCTIONS

It is VERY important that you use the latest version of Interface Updater. Not doing so may damage the interfaces software. 

DETAILED INSTRUCTIONS

  • If this is the first time, download and install "PAC-UP Interface Updater". This will install the necessary software to update the firmware on the Interface. This can be found in the "Download" tab at the very bottom of the firmware list on this page.
  • Download the firmware file to a location on your computer that you can easily find.
  • Open the Interface Updater Program by going to Start >All Programs >AAMP of America > Interface Updater.
  • Connect the PAC-UP to the computer using supplied USB cable. Connect the PAC-UP to the Interface.
  • Click the "Connect" button to establish connection between the PAC-UP and the computer. The "Connected" check box will be checked if successful. If unsuccessful, disconnect the PAC-UP from the computer, restart the software, then reconnect the PAC-UP and try again.
  • Select your Interface from the "Interface select" pull down menu.
  • Click "Update firmware". The new firmware can be found where you saved it before beginning.
  • Once the files are chosen the update will begin. When successful it will show the text "End Update".

IMPORTANT: It is very important that the second from last digit of the revision number on your module matches the second from last digit of the new firmware file revision number. If your numbers do not match, please contact our tech support department.

  • Firmware Download, Version 5.1.4.22 (Released on January 28th, 2022)
    Release Notes

    ***No download available, hardware update only***

    • Changed OS-2X to new hardware platform (black housing). Includes the following improvements:
      • 10a Accessory Output through onboard relay
      • Direct USB connectivity
      • Retains fader in Y91 Premium Bose systems
    Download
  • Firmware Download, Version 3.1.1.6 (Released on July 1st, 2019)
    Release Notes

    ***No download available, harness update only***

    • Changed OS-RADPWRAUDIO to OS-RAD-HAR. Harness includes the following updates:
      • Shortened chime cable
      • Removed blue power antenna input
      • Extended harness length by 2"
      • Removed constant 12v and ground connections from relay to module


    Download
  • Firmware Download, Version 2.1.1.6 (Released on June 1st, 2019)
    Release Notes

    ***No download available, harness update only***

    • OS-RADPWRAUDIO modification to fix accessory drop out issue
    Download
  • Firmware Download, Version V6 (Released on November 6th, 2018)
    Release Notes
    • Fixes issues seen with accessory output turning off and on randomly
    Download
  • Firmware Download, Version 1.1.1.5 (Released on January 19th, 2017)
    Release Notes
    • Adds support for SWI-CP2

    Download
  • Firmware Download, Version v1.1.3 (Released on April 24th, 2015)
    Release Notes
    • Fixes issue with SWC output not working
    Download
  • Utility/Other, Version 2.6 (Released on July 21st, 2017)
    Release Notes
    PAC-UP Interface Updater
    Download

Retains the function of OnStar® when the factory radio is replaced. Generates all safety warning chimes.

  • Rear Seat Entertainment activation
  • Plug-in-connection for steering wheel control module (SWI-CP2, SWI-RC, or SWI-RC-1)
  • In-field updatable firmware via USB
  • Chime Module Included, with 4 level adjustability
  • Retains OnStar® when the factory radio is replaced
  • Retains Bose amplified audio system (if equipped)
  • Provides 10 Amp 12-volt accessory output
  • Retains all safety warning chimes
  • Navigation radio ready
  • Maintains a “healthy” status on the Class II data bus
  • Retains Rear Seat Radio Controls
  • Retains Rear Seat Audio (connects to aftermarket radio AUX input)
  • Plug-in installation for vehicles with a 24-pin harness
OS-2X Instruction Manual
*** Applies to rev 5.1.4.22 (black box) only!***
 Download (1.23M)
OS-2X Instruction Manual
*** Applies to rev 3.1.1.6 (blue box) only!***
 Download (668.13k)
Loss of Acc 12v+
If accessory 12v+ drops out at high volume, follow the procedure in this document.
 Download (1.14M)