Ignition completely off at start / stop ?

Hi together, during my test drive I noticed that the car runs out completely, when I press the start/stop button, so NOT like (e.g.) my BMW the things like radio etc. stay on. Can you change that somehow or is that just like that? I don’t mean the automatic, but that what used to be the ignition key was background, that I really like listening to audio books, and if I want to take a break for 5 minutes, the audio book is allowed to continue, I am schli in the car and listen …. during the test drive it was like that, once you stop, everything was out. Press again (without a clutch, otherwise it will start ….), then it connects again via BT (which lasts forever ….) Do I find stupid ….. someone’s tip ?