I used to just turn my car on and off when I wanted it on and off. Now I have to do internet searches and figure out how to modify (break) some black box system

I used to just turn my car on and off when I wanted it on and off. Now I have to do internet searches and figure out how to modify (break) some black box system to keep it from creating minor safety situations or inadvertently undervolting the stupid touch screen so my stereo no longer works (requiring a turn-it-off-and-back-on-again that I … you know, can no longer do).