o8EXLCoupe

i dont have the EXL w/ Nav so its the smaller, digital screen above the stereo at the top of the console that reads out all the HVAC, and stereo displays...

i developed (i think) this electronic buzz, like a ground noise, or when you have stereo speakers turned up all the way in between songs, that electronic hum...

after a few weeks of investigating and just listening/paying attention to when i notice it, i've discovered it occurs only when the car is outside during the day when the electronic displays are all brighter to compensate so you can see the information...

for example, i'll be driving in a parking structure and the noise will not be there. i'll exit the structure and the daytime running lights will come on and all the displays brighten because on their nighttime setting (when in the structure) they dont have to be as bright. at this point, the display buzzes like i describe. im going to take it to the dealer to fix, but any ideas what this is? i never noticed it until a few weeks ago?

thanks

o8EXLCoupe

guess im not that great of a listener... investigated with a buddy and came to find its coming from the passenger side tweeter

again, the buzz is not dependent on whether or not the stereo is on or off... but seems to be directly related to the daylight settings for the displays on the interior