NurvRS

I have 2013 Fabia MK2 VRS. I bought aftermarket head unit product for my Fabia car, which has a button on the steering wheel. I installed the installation as mentioned. Android Launcher starts automatically when you turn on the vehicle, and turns off if you remove the ignition from the vehicle. So far everything is successful. When I go back half an hour or an hour later and start the vehicle, the screen does not turn on. Android launcher does not start. After removing and reconnecting the cables, everything returns to normal. It reacts when you start/turn off the vehicle. When some time passes and I try again, it still doesn't work. When I tried to understand the problem and iterated the same process again, I no longer received electricity for the head unit. I installed the old head unit and there is no power to it either. 1) The problem may be caused by the fuse, but what triggered the fuse? 2) Why might the head unit not be working as expected? Why it does not work after some moment? I want to get your opinion about this problem