Not sure about 2020, but I compared the '23s and the 6 speaker system is pretty awful, hate to say it.

So bad that I am even prioritizing the bose. You should go to a mazda dealer and see for yourself (Preferred, Select have 6 speaker, all the rest have bose)

Bose even sucks. It’s a nameplate and has been for a long time. Its proper but it’s should be standard

I have the 2016 GT with the Bose speakers. The subs in the doors are paper crap that eventually get wet and detaches from the speaker frames and vibrates annoyingly. I’ve had to rip apart the doors to glue the speaker cones back on to the frames twice now. I don’t know why you would put paper speakers in a door that gets wet. I’m sure overall the system sounds better than the stock speakers, but they have their own issues. Maybe they have improved/fixed this since the 2016 model.

The bose in my 2021 is much better than the bose on my 14 infiniti.

I would recommend the Bose option and not bother with the lesser choices.

If you’re even asking this question then chances are you prioritize good audio in which case you won’t be happy with the base audio.

My last 3 cars have had the Bose sound system. Great sound with the look of stock stereo to detract thieves. My last two have been Mazdas…2015 cx5 Touring edition and now 2024 cx-5 Carbon Edition. …the sound envelopes you . I can’t understand why someone would want a sound system that all they hear is bass and their car rattling from it. I highly recommend a model that has the Bose system.