Just published Ai10 firmware source code: https://sites.google.com/site/projai10/ai10-source-code
As a bonus to H70x controls code contains all necessary routines for main Alpine CD Changer operations (init, play/pause, select disk/track, prev/next disk/track). It allows to control over AiNet both PXA-H70x and CD-Changer without Alpine HU.
There are no terminal interface for CD changer commands yet, hope to find some time to add it soon.
Feel free to post comments and requests.