I am using a DUDU7 head unit in a Mazda 6 GJ with BOSE amplifier. I experience a "click/pop" sound in the speakers (especially the center speaker) during device startup and reboot. This issue happens regardless of power or wiring configuration (AMP CTRL wire is stable at 11.2V). I have tried several grounding methods, RCA rewiring and filtering, but the click persists.
I saw on the DUDU forum that some users had similar problems and received a new MCU firmware version which helped eliminate the click/pop.
Could you please help me with that as well?
Here are my MCU/firmware details:

Let me know if you need any additional information. Thank you in advance!