This frequent blinking could damage the fuses or have some harmful effect on the electronics. I think you should go to a car service. After a similar situation, I had a diagnosis done, and it turned out that the current transfer was broken.
It is better to install diode lights in such situations, which consume less energy and are more environmentally friendly. Also, their main advantage is that they do not deteriorate as much in case of power fluctuations. I like their lighting, so I installed an LED strip under the sills. For effect, I chose one with a musical effect vont.com. Tell me how you solved your problem?
