[AudioI] Octo not Detected

[jr52884 at aim.com]

Matt, All,
I'm having trouble getting my Octo running. If I run:
ls -l /proc/asound
and it does not show the Octo device. Here is the dmesg output:
[    7.417526] cs42xx8 1-0048: 1-0048 supply VA not found, using dummy regulator
[    7.417612] cs42xx8 1-0048: Linked as a consumer to regulator.0
[    7.417630] cs42xx8 1-0048: 1-0048 supply VD not found, using dummy regulator
[    7.417723] cs42xx8 1-0048: 1-0048 supply VLS not found, using dummy regulator
[    7.417787] cs42xx8 1-0048: 1-0048 supply VLC not found, using dummy regulator
[    7.442098] cs42xx8 1-0048: failed to get device ID, ret = -121
[    7.442469] cs42xx8: probe of 1-0048 failed with error -121
[    8.171910] audioinjector-octo soc:sound: ASoC: CODEC DAI cs42448 not registered - will retry
[    8.171929] audioinjector-octo soc:sound: snd_soc_register_card failed (-517)

[    9.731818] audioinjector-octo soc:sound: ASoC: CODEC DAI cs42448 not registered - will retry
[    9.731840] audioinjector-octo soc:sound: snd_soc_register_card failed (-517)
alsamixer does not see anything.
Where should I start troubleshooting?

#dtparam=audio-on is commented out and I added dtoverlay=audioinjector-addons in my /boot/config.txt. Does this look like a hardware problem of some sort? When I received it, a stacking header was soldered in. 
The same image I'm using on the Pi previously had the Audio Injector Stereo configured and working. I simply replaced the existing dtoverlay with dtoverlay=audioinjector-addons.
This looks more like a hardware problem. What do you guys think?
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