So installed some HID's on a 2010 this afternoon and when the lights are in "automatic" mode, you can hear a buzzing or humming noise from the engine bay. when you turn the lights off and on manually the buzzing/humming noise is there. to install the HID's i had to install a wiring harness with it as well and needed to disconnect the battery, could this be why? wondering if this noise will go away or what i can do.