Electrical Problem with Alfa 146 ti

[Game-R]

My brother is having a second hand Alfa 146ti which seems to have a weird problem with its electrical system. Every lighting in the car (and I mean every) pulses. Headlamps, interior lighting, instrumentation display, clock heck even the radio lighting pulses. The pulses aren't that big but noticeble. The rate which it pulses isn't influenced by the engine speed. Has anyone had this problem before?? Is this a bad sign??