Results 1 to 11 of 11

Thread: CX-9 infortainment connector diagram for AIO tweaks hack

  1. #1
    Registered Member

    Mazda, CX-9

    Join Date
    May 2018
    Location
    Palmerston North
    Posts
    3

    CX-9 infortainment connector diagram for AIO tweaks hack

    I am trying to install AIO tweaks on my CX-9 year 2018. After I open the unit, I found out that the connector is different from the other modelís unit. Can anyone point me out where can I find the wiring diagram of the unit? I want to know which pin is Tx and Rx. Here are the photos of the unit.

    Thank you in advance.
    Attached Images Attached Images

  2. #2
    Registered Member andre6_'s Avatar

    Mazda CX-9 GS-L 2017 AWD

    Join Date
    Jul 2017
    Location
    Markham, Ontario, Canada
    Posts
    24
    I want to know as well. Could you tell me how you took out the head unit? The CX-9 has a hidden panel behind the screen. I haven't try to pull it out yet as it seems a bit hard when I try to pull out the front panel of the vent to access the screws.
    2017 Mazda CX-9 GS-L White with Tan leather interior
    2011 Hyundai Elantra Limited Grey with black leather interior

    2007 Honda Civic Si Coupe Silver with black interior - Sold
    2001 Acura 1.7 EL Green with black leather interior - Sold

  3. #3
    Registered Member

    Mazda, CX-9

    Join Date
    May 2018
    Location
    Palmerston North
    Posts
    3
    Hi
    Here is the manual how to remove the unit. It is not hard if you using the right tool. However, I am still searching for the unit's diagram.

    Credit: thanks to jellyfish11 who post this manual.
    Attached Files Attached Files
    Last edited by cottonee; 05-28-2018 at 08:51 PM.

  4. #4
    Registered Member

    Mazda CX-9 2018

    Join Date
    Mar 2018
    Location
    random
    Posts
    7
    If you can take some picture of the 1) serial ports interface of the display unit after removal and 2) their plugs into the console, I'm gonna send it to Bijan Albuyeh who wrote incredible tutorials for programming mazda infotainment systems, after giving me permission of course. He may work something out and know which goes with which.

    Additionally, for anyone who wants a video tutorial for display removal, here's one:


    Last edited by randomstuff; 05-31-2018 at 10:16 AM.

  5. #5
    Registered Member

    Mazda, CX-9

    Join Date
    May 2018
    Location
    Palmerston North
    Posts
    3
    Thanks, Randomstuff, that what I want. The video shows how to remove the whole unit to get into the ports. I didn't' see the ports because I didn't remove the whole unit.

  6. #6
    Registered Member andre6_'s Avatar

    Mazda CX-9 GS-L 2017 AWD

    Join Date
    Jul 2017
    Location
    Markham, Ontario, Canada
    Posts
    24
    Very awesome Randomstuff. Let me see if I have time to pull mine out. Basically you want a picture of the connection for the screen and console right? Therefore I need to pull out the screen and the console and take pictures of the connection ports.
    Sigs are visible only in your first post on a page. To change your thread display preferences, click here and enable 'Always Show Signature'.

  7. #7
    Registered Member

    Mazda CX-9 2018

    Join Date
    Mar 2018
    Location
    random
    Posts
    7
    Quote Originally Posted by andre6_ View Post
    Very awesome Randomstuff. Let me see if I have time to pull mine out. Basically you want a picture of the connection for the screen and console right? Therefore I need to pull out the screen and the console and take pictures of the connection ports.
    You're most welcome, guys. And I'd appreciate it if you do. I'll keep checking once you have replied again. Thank you in advance.

  8. #8
    Registered Member


    Join Date
    Mar 2008
    Posts
    8
    Tagging along for some info. I was actually going to install AA this weekend, but I didn't realize that the ports are different than what was shown in the tutorial. Waiting patiently...

  9. #9
    Registered Member

    Mazda CX-9 2018

    Join Date
    Mar 2018
    Location
    random
    Posts
    7
    Quote Originally Posted by andre6_ View Post
    Very awesome Randomstuff. Let me see if I have time to pull mine out. Basically you want a picture of the connection for the screen and console right? Therefore I need to pull out the screen and the console and take pictures of the connection ports.
    Everyone is waiting for a hero. As for me, I've only got my new car for almost six months, so I don't wanna mess sth up, given the situation with guarantee period. If you could provide us with your attempt and the steps (visual ofc), you'd be helping so many people. Who knows, though? I might even get desperate and start working on mine. xD

  10. #10
    Registered Member

    2014 Mazda CX-5 Sport MT / 2016 Mazda CX-9 GT AWD

    Join Date
    Dec 2014
    Location
    United States
    Posts
    14
    CX9 CMU wiring diagrams are available in this post from jellyfish11:

    https://www.mazdas247.com/forum/show...=1#post6575412

    It looks like the 0920-301B connector shown in both "AudioSystem 3a.pdf" and "AudioSystem 3h.pdf" matches the PIN layout shown at https://mazdatweaks.com/serial/. The top post of this thread looks like it's showing the connectors for the display, as 0920-304A and 0920-304B in "AudioSystem 3a.pdf" match "pic3.jpg" in this post, rather than the CMU, which you can apparently after removing the display. So cottonee maybe you need to remove the CMU next...? Has someone tried pulling the CMU out to see if we actually have the 0920-301B connector, or is that what people are waiting for? It seems like if we have this connector, we should be able to do the serial tweaks.

  11. #11
    Registered Member

    2014 Mazda CX-5 Sport MT / 2016 Mazda CX-9 GT AWD

    Join Date
    Dec 2014
    Location
    United States
    Posts
    14
    I can confirm (2016 GT) that you can:

    1. remove the display
    2. disconnect it
    3. slide out / expose the connected CMU to get access to the RX/TX lines (2S/2T, same as in https://mazdatweaks.com/serial/)
    4. send commands to the CMU, assuming you have solid-core wires -- the ones recommended in the above URL are very thin stranded wires which makes the process awful! I pulled some off of old audio component capacitors I had sitting around, twisted the stranded wire around those, and jammed them into the 2S/2T ports of the CMU.

    So hopefully doing the upgrade to 70.0+ with proper Android Auto / CarPlay support should be easy once the region-specific firmware arrives. In the meantime, there is the version available in Mazda-AIO available for us, which works pretty well.

Similar Threads

  1. Have You Tried the AIO Tweaks?
    By Guest2018 in forum CX-9 Lounge
    Replies: 13
    Last Post: 11-05-2017, 11:39 AM
  2. Strange Infortainment CD occurance
    By wlong01 in forum CX-5 Infotainment
    Replies: 2
    Last Post: 11-06-2016, 04:25 PM
  3. Infortainment Update
    By jjp735i in forum CX-5 Lounge
    Replies: 16
    Last Post: 03-25-2016, 02:18 PM
  4. Tweaks and such
    By seckz.ProTegE in forum Mazdaspeed Protege
    Replies: 1
    Last Post: 05-12-2003, 01:23 AM
  5. P5 Ecu Tweaks
    By Woody in forum Mazda Protege
    Replies: 58
    Last Post: 05-21-2002, 03:47 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •