Solved: Volumio to Zeppelin Mini

Hello

Trying to hook up a Pi with Volumio to a Zeppelin Mini a small sound system. The normal input to this sound system is a docked iPhone with a “legacy” connector. The Zeppelin also has a USB connector for digital input. I want to feed the digital output from the Pi to this input. Anyone has any idea how to achieve this? I have tried to play but no sound. Suspect the signal is going to the analog output right now.

Updated the firmware for Zeppelin and things worked!