This video describes how to install the device you need to make your warning light flash or your warning beeper beep intermittently. The rate of flashing is adjustable.
Thanks. I simply replaced the 12V buzzer with the light. Please see my other video of how to wire the Electric Door Step: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-X48i3jHdyXs.html