-Yes finally my cable came in today! (after 25 days OMG!)
-Flashed this kernel - http://forum.xda-developers.com/showthread.php?t=2181820&highlight=nexus+4
-Already had USB audio recorder trial.
-started UsbAudioTesterROOT app, chose USB device 2:2 (it will be showing as Fiio E17 DAC)
-Apply all settings, start USB audio recorder pro and...
-Bam I confirm that NEXUS 4 4.2.2 (rooted with PA HALO ROM+and said kernel flashed) is compatible with Fiio E17's DAC function
calling DanBa - Please update the list that the Nexus 4 can support USB audio out and it is compatible with Fiio E17 DAC
Nexus 4 = Fiio E17 DAC
Can't believe google missed and skipped out this feature compared to major manufacturers, it should ideally be an out of the box feature as it is a Nexus device.
Will post audio setup soon...
Edited by jcagara08 - 6/25/13 at 1:49am