Found a few bits tonight:
Unlock page on huawei.com:
http://emui.huawei.com/en/plugin.php?id=unlock&mod=detail
Kernel source 4.4.4:
http://emui.huawei.com/en/plugin.php?id=hwdownload&mod=detail&mid=75
Huawei music player:
http://appstore.huawei.com/app/C10021449
Added to system. EDIT: Actually since the cloud feature doesn't work in our region and the online music is all Chinese I decided on "Music" from the f-droid app for the system, it's simular to Applo and gpl without the aforementioned issues and it's much smaller.
Here is some info that may be helpful. It was posted a few pages back
Sent from my Nexus 5