When you are sitting in the car in a completely quite environment what do you hear ? My HW2 MS - slight hum / whirring from the computer. - more annoying/bordering on errie is a light click that comes from left and right (speakers ? ) Tic tick Tic tick.... Tic tick ... Forever ...!!!! Does anyone know what this is !? Of course there are louder greeting sounds as you walk towards the car. I was also alarmed at how loud a model x was at a super charger . Something near the frunk had a fairly loud humming ... Also when a software update happens the car runs tons of self diagnostic - then you can hear all the individual motors fire up one after the other - that's pretty cool. Please share your sounds.