Hi Gang. Some of us are having an issue where occasionally we hear some Electrical Noise through the Speakers. For me it normally happens just after I start up the car and goes away after a minute or two. Usually sounds like a "Popping, Tapping, or Static" sound. Some may call it "Engine Noise". I spoke to Tesla about it and they sent me the following email to help narrow it down. If you are having this issue. Please add any information your can think of to help them find and eliminate the problem.
Regarding your concern about the noise coming from the speakers, I have a few questions that will help us in trying to determine the cause:
1) What audio source are you listening to when you hear this noise (i.e. AM Radio, FM Radio, USB Media/iPod, Slacker, etc.)
2) Have you heard the noise when there is no audio source selected?
3) Where do you typically place your cell phone when you get in the vehicle (e.g. in your pocket, in between the seats on the floor, in cubby beneath the display, etc.)
4) Have you noticed this noise to be more common in certain areas (e.g. Highway 280 near San Jose, Highway 17 in the mountains, etc.)
5) Does the noise seem to come from any 1 or 2 particular speakers, or can you hear it from front and rear speakers?