Need help with Sonos PLAYBAR remote code for Premiere

I am using Premeire with a Sonos PLAYBAR.



This has worked out well but I am having an issue where the volume starts dropping on the Sonos PLAYBAR over time.



I've learned that I need to program remote code separately for the PLAYBAR which could solve this problem.



Has anyone done this? If so, do you know which remote code specific to Sonos PLAYBAR that should I enter?



Please help. Thanks.