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Troy

By Troy

Hacking The GM Harman INFO3, INFO3.6 CSM Radio

I've already successfully hacked this GM Harman INFO CSM radios and created a DPS VIN change file, which can be used to unlock and remove the Theft Lock from these radios.

The DPS VIN change file can be found at this link.

My next goal is to explore this radio further to identify additional hacking opportunities.

Sometimes, locating connectors for the modules can be difficult, so I purchase modules from sellers who cut the connector wires and include them with the module purchase. This allows me to acquire some connector cables without purchasing the wiring harness.

This article is a placeholder for future findings and experiments.

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    •
    • Thanks 1

    User Feedback

    Recommended Comments

    Opelinsignia1985 Collaborator

    +Opelinsignia1985

    +Contributor
    • Contributor

    Great work, I have bought INFO3.0 to retrofit to Astra K including the wiring harness

    I also understood that INFO3.6 have wireless Apple CarPlay.

    At the moment it is challenging to do a custom writing on the calibration. I was hoping to flash Vauxhall / opel start up to be shown on Info 3.6.

    GM Vauxhall/Opel SPS Subscription (Europe) & Techline Connect SPS2 & GM Module Programming service

    Car Hacking Services I Provide For General Motors Vehicles.

    • GM SPS Access (Europe)
    • GM SPS Access (USA)
    • GM GDS2 Access
    • GM Features Activation/Deactivation
    • GM Remote Diagnosing and Troubleshooting
    • All GM Modules Programming
    • Providing Required GM Calibrations
    • GM ECM/TCM Unlocking
    • GM ECM/TCM Tuning
    • Auto Mechanic Workshop
  • Quote
    • Thumbs-Up 1
    Troy Grand Master

    Troy

    Administrator

    GM Car Hacking Expert

    I have an INFO3 and INFO3.6 radio with me. Hopefully there's a method to do some custom writing.

  • Quote
    • Like 1
    Arbe_gtc Rookie

    +Arbe_gtc

    +Contributor

    GM Car Hacking Expert

    • Contributor
    On 4/5/2025 at 8:02 PM, Opelinsignia1985 said:

    Great work, I have bought INFO3.0 to retrofit to Astra K including the wiring harness

    I also understood that INFO3.6 have wireless Apple CarPlay.

    At the moment it is challenging to do a custom writing on the calibration. I was hoping to flash Vauxhall / opel start up to be shown on Info 3.6.

    The 3.6 have wireless Android auto and Carplay, but only works if the AP wireless of the unit are active and with US caliobrations, in EUR calibrations, is disabled

  • Quote
    • Like 2
    • OO 1
    med458 Enthusiast

    +med458

    +Contributor
    • Contributor

    Interesting, what is needed to do a bench setup? Just power up a radio and display module? Or is BCM and other items needed?

  • Quote
    • Troy Grand Master

    Troy

    Administrator

    GM Car Hacking Expert

    Radio and screen is enough. Add a BCM if you need to change the radio VIN on the bench.

  • Quote
    • amazingjoey Apprentice

    amazingjoey

    Member

    Oh coolt!

    Stupid questions but w ould it be possible to run this on older plattform such as the Regal/Insignia Gen 1?

  • Quote
    • GM-Enthusiast Mentor

    +GM-Enthusiast

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    GM Car Hacking Expert

    • Contributor
    7 hours ago, amazingjoey said:

    Oh coolt!

    Stupid questions but w ould it be possible to run this on older plattform such as the Regal/Insignia Gen 1?

    its works on 2012+ Global A

    Workshop Services

    Car Hacking Services I Provide For General Motors Vehicles.

    • GM Remote Diagnosing and Troubleshooting
    • All GM Modules Programming
    • GM ECM/TCM Tuning
    • Auto Mechanic Workshop
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    • Love-it 1
    amazingjoey Apprentice

    amazingjoey

    Member
    2 hours ago, GM-Enthusiast said:

    its works on 2012+ Global A

    Forgot the Global A name 😅

    What's the limitation that makes it not work on 08-12? I'm new to the plattform but really want to learn it's in's and out's

  • Quote
    • GM-Enthusiast Mentor

    +GM-Enthusiast

    +Contributor

    GM Car Hacking Expert

    • Contributor
    3 hours ago, amazingjoey said:

    Forgot the Global A name 😅

    What's the limitation that makes it not work on 08-12? I'm new to the plattform but really want to learn it's in's and out's

    if vehicle same BCM DPS works perfectimage.png

    Workshop Services

    Car Hacking Services I Provide For General Motors Vehicles.

    • GM Remote Diagnosing and Troubleshooting
    • All GM Modules Programming
    • GM ECM/TCM Tuning
    • Auto Mechanic Workshop
  • Quote
    • Love-it 1
    amazingjoey Apprentice

    amazingjoey

    Member

    I have the 13501739 BCM :)

    I've got a SAAB ng9-5 2011, which is basicly a Inisgnia/regal. So I'm looking into how and what I can do to modernize it as I want to push this plattform forward :)

  • Quote
    • Troy Grand Master

    Troy

    Administrator

    GM Car Hacking Expert

    3 hours ago, amazingjoey said:

    I have the 13501739 BCM :)

    I've got a SAAB ng9-5 2011, which is basicly a Inisgnia/regal. So I'm looking into how and what I can do to modernize it as I want to push this plattform forward :)

    I’ve seen one person’s video on YouTube where they installed an HMI 2.5 system in a 2011 vehicle. I have no knowledge of what needs to be done to achieve it but it's possible.

  • Quote
    • amazingjoey Apprentice

    amazingjoey

    Member
    On 5/2/2025 at 9:57 PM, Troy said:

    I’ve seen one person’s video on YouTube where they installed an HMI 2.5 system in a 2011 vehicle. I have no knowledge of what needs to be done to achieve it but it's possible.

    Apparently just adapter harness and VIN inside of it:

    image.png

  • Quote
    • simaservis Apprentice

    +simaservis

    +Contributor
    • Contributor

    Does the MOST(Ethernet) loop need to closed for HMI3 to startup on bench or not?

  • Quote
    • Arbe_gtc Rookie

    +Arbe_gtc

    +Contributor

    GM Car Hacking Expert

    • Contributor
    On 11/15/2025 at 4:13 PM, simaservis said:

    Does the MOST(Ethernet) loop need to closed for HMI3 to startup on bench or not?

    The ethernet bus are only 2 wires

    Radio to speedo

    Radio to onstar

    Radio to amplifier

    If dont have onstar or amp only needs 2

    If have all, 6 wires

  • Quote
    • Like 1
    tobiasp Collaborator

    +tobiasp

    +Contributor
    • Contributor

    On bench for programming you don't need ethernet bus. When you will see on the cluster something or you will youse bose vor tests you need the ethernet bus

  • Quote
    • Like 1
    simaservis Apprentice

    +simaservis

    +Contributor
    • Contributor
    On 11/19/2025 at 8:08 PM, tobiasp said:

    On bench for programming you don't need ethernet bus. When you will see on the cluster something or you will youse bose vor tests you need the ethernet bus

    This was the answer i was looking for.

    I started the unit on bench today.It is rebooting every 2 minutes,same as in car.

    Will investigate how to fix this fault.

  • Quote
    • BullMech Enthusiast

    +BullMech

    +Contributor
    • Contributor
    On 5/8/2025 at 12:14 AM, amazingjoey said:

    Apparently just adapter harness and VIN inside of it:

    image.png

    hi, do you know any adapter harness, if I would like to replace the small radio / display (without a HMI) with the big display radio with HMI 2.0 or 2.5 in Insignia 2014?

  • Quote
    • regloops Enthusiast

    +regloops

    +Contributor
    • Contributor
    On 02.05.2025 at 22:57, Troy said:

    Я видел на YouTube видео, в котором человек установил систему HMI 2.5 в автомобиль 2011 года выпуска. Я не знаю, что для этого нужно сделать, но это возможно.

    I'll be doing this soon with HMI 3.6. I just need to buy a couple more components and test its functionality with a 10.2 display from bolt EUV

  • Quote
    • Arbe_gtc Rookie

    +Arbe_gtc

    +Contributor

    GM Car Hacking Expert

    • Contributor

    The caldef database have all description of each calibration, yes

    Inspecting the firmware USB update can get it

  • Quote
    • Miragui Top Member

    +Miragui

    +Contributor
    • Contributor
    30 minutes ago, Arbe_gtc said:

    The caldef database have all description of each calibration, yes

    Inspecting the firmware USB update can get it

    Do you have the firmware update?

  • Quote
    • Arbe_gtc Rookie

    +Arbe_gtc

    +Contributor

    GM Car Hacking Expert

    • Contributor

    For caldef see here

    I have some update files yes

  • Quote
    • Miragui Top Member

    +Miragui

    +Contributor
    • Contributor
    15 minutes ago, Arbe_gtc said:

    For caldef see here

    I have some update files yes

    Are you willing to share the firmware update files?

  • Quote

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