I know this is weird, but can you tell me if this happened to you.
With the car shut off, key out of the ignition, lights turn off and the door open; when I hit the brake a buzzer noise sounds, like I have the key in the ignition or the lights are still on, but there not. What could be causing this? Or is this just normal?
Thanks!

 

any ideas?

 

from the speakers? maybe bad ground..
I use to have a bad ground that when I would open the doors and the lights would turn on .. you'd hear a "buzz" sound.

 

Not coming from the speakers. No it's the buzzing you hear if the lights were on but there not. It's when I put my foot on the brake with the door open.