The BMW i4 does not come with 10 speakers on base model or Msport/Msport pro pack.
2 seperate dealerships have confirmed this and BMW genius also that it is a 6 speaker setup with 100w.
In the USA market it is 10 speaker Hi-Fi system on base model, but the European market comes with 6 as standard.
The front tweeter and speaker on the dashboard is just a dummy with no real use other than keeping the same aesthetic as all models.
Call your dealership and ask them to make sure they are giving you the correct information and not just google search which is what they are most likely doing, I would ask then to confirm with the dealership manager and enquire with BMW directly.
