OhmMega

The intent was for this project to be open source. I don't have access to the firmware nor time to reverse engineer the HMI module meaning the project is at a stand still. For the time being you will have to rely on those who have capitalized on access to gm equipment for updates and modifications.

XD mod.2 9mm Just bought it. Massive improvement on the grip ergonomics over my XDm.

Going to have to change mine soon. 27k mi. I'd like a charcoal or odor reducing filter, I hate trailing in the wake of some nasty diesel.

Use our own software. Need to learn more about the bootloader. I found a dev screen by pressing power+home+menu.

Haha, poor guy doesn't know he bought a truck. Everyone knows only sports cars drive as you described. And you should shoot the turd that forced you to buy a vehicle you didn't get to test drive or evaluate before making a $30k decision. Did you look at a titan or tunderford? Better misconception with those vehicles, you probably would have been happier... Initially haha

I have a 2014 lt2 with Nav, do you need a vin? I can setup a file share as well.

As with any capitalist company, you can bet the only changes they will allow/release will benefit their bank accounts. Don't count on anything truly game changing from gm, its simply not cost effective for them. If the community can break the software then we could potentially use android as the operating system.

I pm'd a guy about sharing info/files from the map update, would provide some insight about an update procedure or hopefully a bootloader if its more than just maps. Another thing I've been looking into is the emmc chip. There's a test header and pads next to it. If the cmd,clk,and dat0 can be located then a nand dump can be obtained. Probably would be encrypted but its a start. On the opposite side of the emmc chip near the test header there are 6 large test pads that are exposed while the PCB is encased. Would make since if those were associated.

I'm making up some new diagrams for the HMI Module. Here's a text reference for the terminations until the images are finished. Human Machine Interface Control Module NG 2.0 Gray plug [X2] pin - color/stripe - description 01 - White/Violet - 12v+ 02 - White/Green - MOST data 03 - Gray/Violet - MOST data 04 - na 05 - Gray/Yellow - unknown 06 - White/Blue - unknown 07 - na 08 - Gray/Violet - MOST data 09 - White/Green - MOST data 10 - na 11 - na 12 - na Black plug [X1] pin - color/stripe - description 01 - Gray/Yellow - Mic+ 02 - Black/Gray - Mic- 03 - na 04 - na 05 - White/Blue - unknown 06 - na 07 - Red/Violet - 12v+ Battery 08 - Black - 0v (ground) 09 - Green/White - LIN data 10 - na 11 - Blue - CAN H 12 - White - CAN L 13 - Blue - CAN H 14 - White - CAN L 15 - na 16 - na The CAN bus is jumped through in the module. I'm not sure what side is in and what side is out yet until i meter the wires. The MOST bus is intriguing as it is an A/V bus connected through the HMI, Instrument Cluster, DISC Player, Display, Amplifier(if applicable) and Radio. MOST bus is also jumped through in the module. The LIN bus I think hits the buttons like steering wheel, hvac controls, media controls... I'm still investigating the system setup to further evaluate the next move, rather breaking the HMI software and reusing the hardware, or building a new bit of hardware. My only issue is a MOST controller is nearly impossible to come by. Although there are some aftermarket MOST integration products for foreign cars. The HMI is actually pretty decent at a glance, it has 8Gb DDR3 Ram, 32Gb eMMC, LIN, CAN, MOST50, Accelerometer, BT/Wifi, GPS. I'm may start finding someone with one of the nav map updates to see if they'll share the files. It may have some insight into the update process and maybe an easy way into the software. Otherwise steps will have to be taken to try and read the eMMC memory. More to come...

I was thinking about putting an equalizer in. I setup some pink noise and it looks like the 5-8khz starts to dip. Anyone know if the gain in those bands will be noticeable enoughto justify the $2-300 cost?

This is my winter project while I have down time. I received a can bus shield for arduino compatible dev boards. Ill have it setup to record the messages going to the HMI module. Once I compile a database of messages I'll start on implementing something like a pcduino/hummingboard/udoo... Then I'll have some work connecting and programming: Can Bus Vehicle telematics Steering wheel controls HVAC integration Instrument cluster Microphone Display 4ch audio volume control Rear cam Bluetooth This will all run in Android.

Replaced all the old T12 lights with T8's in my garage. Most of the ballasts and bulbs were bad when we moved in and it was worth the peace of mind to have all new.

Not at all the same. The Silverado, impala, and some Cadillacs use a Bosch system. The Panasonic's can be found in the camaro, cruze, sonic, SS.... Different hardware and software. The gm developers is a gimmick to help gm sales. Basically you or I can create an app, send it to gm for approval, and they market it as a perk for their vehicles. The point here is to change the OS. Either to modify the current setup or to maybe android or something well designed for a mobile user interface. I've also teased the idea of replacing the HMI with a raspberry pi. There are a few obsticals like the display runs off fpd-link and I'd have to compile a database of CAN messages.

A good bit of into on the HMI NG1.1 from the Cadillac CUE system. The NG2.0 is very similar. http://electronics360.globalspec.com/article/3632/bosch-ng1-1-hmi-teardown

My14