There appears to be some US Mazda owners with Mazda Connect and also NNG SD Card for Navigation hearing a Beeping or Popping sound every few minutes through systems speakers.
Applies to CX-50, Mazda 3 (BP) , Mazda CX-30, MX-30 EV, CX-5, CX-9, not certain about new Euro CX-60.
Again AFAIK this intermittent Beep noise issue apples to other Mazda/NNG Markets in EU/UK/AU/NZ/ZA and Asia, South America, etc.
NNG, Mazda Japan, and MNAO in North America are aware of this issue and a countermeasure
is in the pipeline to resolve this noise.
It appears it is an issue with NNG SD Card and its software, but also appears that a Firmware update will also be needed for the cars Mazda Connect infotainment.
As this fix requires regulatory approval with many checks and balances it appears that the earliest release with be summer time in North America.
Obviously IF your are NOT hearing any unusual intermittent Beep noise then you should not be concerned, also obviously AFAIK you will also be Firmware updates during the life of your car about every 12 months and NNG Map updates via Mazda (NNG)Toolbox App.
I stress your Mazda will not fall apart and everything Navigation related will still work as intended.
As far as rest of the world as soon as Dealers hear anything I or others will let you know.
I suggest you do not flood your Dealer about this news as it is very brand new and many may not have hears of it yet particularly if they have not seen other Mazda owners see or experiencing the cause.