Radio Reception Problem

207 I have unbranded windows ce double tapes installed by the old owner in my vehicle. I do not have a problem with bluetooth, usb, etc.I am actually satisfied, but there is a problem in the radio, I turn on the radio when I first get in the car and sit, but it cuts off by itself and the noise starts to sound after 1-2 minutes or if you start the engine and go when the radio is running, the radio again after 15-20 seconds. It is cut off, I think it will not pull at all because of the antenna.

Good evening.