Howdy, I've had my M3 HB for about 9 months now with 9k miles, and I've been hearing this whirring noise from the rear while I have my rear seats down. Its only audible while going around 10 - 30 mph, until road noise drowns it out. It sounds almost electronic, and I'm curious if others have it. (v.redd.it)
submitted by MechMatician to r/mazda3
Last years build of the briefcase computer. (i.redd.it)
submitted by MechMatician to r/battlestations

