BMWMAN2022
Member
Something happened that happened a long time ago with my 2011 30i, when I unlock my car door and sat in my car a very awkward buzzing sound That almost sounds like it's coming from the back behind my seats, and then when I turn my car on the buzzing's still occurs even behind my radio and CD player even playing It's a very loud buzzing until I get out of the car lock the doors and within 10 minutes it goes away, it's done this once before several months ago, I have a video below of it could anybody tell me what this is?

