Hi everybody,

It started a few weeks ago, when I put the key into ignition (position I) without starting the engine. It's present with the radio on/off as well but it gets a bit louder when the engine is running.
So far I've replaced the radio but no luck. There are no mods on the car, it's stock.

Last night I drove home very late and I had my lights on (low beams- I haven't driven the car at night in a long time) and I've noticed that the noise is almost gone (fainted). When I turned off the low beams the noise level rose again. I turned on the mirror heating getting the same results.
I can't find any explanation for this...
Any ideas?

Thank you !
Adrian.