Hello there guys, just needed a little bit of professional help.

Everytime I turn off the car, there's always this little buzzing noise by the passenger footrest, I look under the glove compartment and what's above the footrest, but see nothing unusual.

When the car is turned off after driving, with keys off the ignition, the buzzing still happens for about 3-5 second. It just always made me wonder what's going on?

Doesn't really bother me, but I am concerned it might be something that might effect me later down the road.

Thanks.