From the main screen, the versions are:

Application Version:
 Setting: V26.0.0_ZL  TV: V21.1.1
 Radio: V26.0.1       DVD: V26.0.0
 SWC: V26.0.1         AUX: V26.0.1
 Bluetooth: V26.0.1   Ipod: V21.0.0
 FileManager: V26.1.0

 ZL-A8-51-A8-8888 V4.7DHM 43

The TV utility lets you show ‘system status’ which in turn shows:

Hardware Version: IRIS 2.0
Software Version: TH T1.05
Loader Version: CMLD 1.05
System ID: TDB20H.
Last Update Date: 2012-3-28



Using apktool to decode the Radio.apk, we can see that all the magic is done in, w/ native calls from Java through to it.

Running ‘strings’ on the, its relatively simple, and uses a combination of /dev/sbd, /sys/class/sbd/misc/source, and /data/sbd/radio_freqlist.

The has a single externally callable method, Java_com_sbd_hw_Radio_nativeSendCommand().

So it should be relatively easy to hook this and find that is being called, and use strace to see what is written to the driver files.

So i have purchased a 2-din 6.2″ Android to install into my 2011 Chevrolet Silverado (non-Bose radio). My intent is to make sure it is rooted, upgraded from Gingerbread to Jelly Bean, and tethered to my Galaxy Nexus.

Other modifications I wish to do include a Tasker profile to run a dropbox-sync when it sees my home WiFi (hopefully in the time between driving into my garage and the retained-accessory-power (RAP) turning it off).

I will also be connecting this to the steering – wheel controls, to the OBD-II sensor via Bluetooth, and to a rearview camera, as well as to the stock (OnStar) microphone.

I have purchased an Axxess ASWC and an Axxess GMOS-LAN-01 to do the wiring & canbus hookup. I have also purchased a Metra GM Multi-kit 95-3305 faceplate adapter.

There are some existing threads about these family of stereos (I believe they are all the same OEM, just different manufacturer labels), e.g. @ XDA, 4PDA, and 4PDA.

The stereo arrives at the end of this week, so the fun will start then. Until then, i can only see the img files and build.prop etc.

Available from for $310 with free shipping.