DuaLink Kit for Select GM Vehicles

$0.00 ISGM535

Dual Auxiliary Audio Input Interface for Select General Motors Vehicles (Includes PXAUX Interface & PGHGM5 Harness)


DuaLink Kit for Select GM Vehicles

Gateway Firmware Updater

  • Download the update package to your PC. Make sure you save it in a place you can easily find it like a "New Folder" on your desktop.
  • Extract the files from the .zip folder to your PC. Save them in the same place as the .zip folder.
  • Follow the procedure outlined in this video to setup the program and update your module:
  • Firmware Download, Version 862b (Released on January 4th, 2012)
    Release Notes

    Gateway Update Software/Driver Package


The kit integrates two auxiliary audio sources directly to the factory radio for the highest possible sound quality—ideal for mp3 players, portable DVD players, handheld GPS, laptops, and gaming systems.

  • The plug-and-play installation maintains factory wiring integrity.
  • Direct audio input to factory radio for maximum sound quality
  • Two separate inputs - RCA and 3.5mm minijack 
  • Retains factory-installed satellite radio
Compatibility Notes
  • The vehicle MUST be either equipped with or have the ability to support Satellite Radio.
  • Radio must have a "Band" or "XM" button to be compatible
  • Not compatible in vehicles equipped with "Monsoon" system
  • When using the ISGM535: Some radios may have an inactive satellite radio port if not equipped with a factory satellite radio tuner. Please see a dealer for activation of this port to enable the ISGM535 interface
Product Revision History

Current Revision #: .853b       Description: General Update    Release Date: 12-21-12

Revision #: 816b    Description: Initial Release

ISGM535 / ISGM575 Tech Bulletin
GM Class II - Supported Radio Not Being Recognized - Tech II Flash Procedure
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