the speakers are all active or atleast i suspect as page 2 is audio and shows audio channels as 6 as standard u have the option for 4,6,8 will see if thats specifically speakers, the rest was about the braking mode being on esp mode which is standard, i turned it to esp+eba on page 5, the second last option, which helps in the car judging itself the actual braking power needed when braking during an emergency braking situation and applies that regardless of how much brake force your foot has applied.
The second is front parking sensors during reversing although i still haven't seen that setting do anything different and changed the steering to have speed sensitive steering on and dont feel a difference there too, will check that out on a long route.