PI32 Harmony USB Headset porting DM320014

Hi,
i have the DM320014 board which is not available anymore and i am trying to port it to harmony with MPLAB X IPE V5.05
I am using the AN2582 application note to help to port it but with no success.
Since the audio codec AK4645a is not available in harmony i couldnt get further. 
Is there a way to add a codec to harmony?
I have portet the old firmware to MPLAB X IDE and the only problem is that the USB synchronization fails to get codec values every 15 seconds. It is returning an audio package with 0. This is causing a noise in the output speakers.
I am hoping to use the new harmony library that has no issue on synchronization and have a clean audio recording.
 
Can someone help me?