So if you go on Autotrader and see some of the existing i4 e35 cars without HK, you can see it has 4 speakers at the front doors (2 each door), 2 in the rear, 2 in the middle of the dash, and there will be 2 subwoofers under the front seats, therefore adds up to 10 speakers.
But are they all connected? Might they be just ready for those who opt for the 10 speaker system?
2024 - BMW i4 Grand Coupe eDrive 35 Sport
2020 - Volvo XC40 T4 Inscription
2017 - Audi Q3 TFSi Sport S-Tronic