I recently got a Pro-ject debut carbon Sonos edition and i am trying to connect it to Era 300. i followed all the instructions, connected the RCA cable to the Pro-ject provided RCA-Aux adapter and then to the AUX to USB-C adapter provided by Sonos. I can hear the music but the volume is very low and there is a constant static, its a humming sound. The volume of the static noise increases when I increase the volume.
I redid the RCA connections, havent connected the ground to anything as instructed. Is there something i can do to fix or could this just be a fault in-built pre-amp?