No, buzzing noises from the door are extremely rare, you might wanna pull the door panel off and take it for a drive to see if the noise is louder or no longer there. Its easy to pull the panel off, there is two bolts (pic) you have to take out. Just make sure to use super glue or silly putty on the lower bolt because you don't want it to fall behind the door compartment. When the bolts are out slowly pry it off with a screwdriver, or give it a good yank like i do.
