Static/clicking sound while car is moving

Hi all! Newbie on the forum here. I owned a Gen 2 a while back and just bought a 2014. Anywho, all seems to be great with the car except this annoying sound I can't pinpoint. The best way to describe it is as a very light clicking, almost electric static sound. It isn't consistent, but rather comes in inconsistent bursts of clicks. I can't pinpoint the location, but it seems to be somewhere on the driver's side dash. The light clicking sound does not happen when the car is still. The sound does NOT seem to be effected by braking or acceleration. It seems worst when the car is first driven, and slowly decreases in frequency until I do not notice unless maybe at highway speed very intermittently.

I tried recording the sound, but phone won't pick it up. Searched the forums and found nothing similar. Any ideas?! Thanks in advance, and really enjoying the car otherwise!

 

Thanks for the reply. 153K miles. I pulled maintenance from Toyota as work was done at dealerships. Doesn't appear any brake work was done, at least not at the dealership. It doesn't sound brake related, but I know how sounds can be deceiving. Sounds almost like something in the dash. I want to say my old Gen II did the same thing, but I might not be remembering that correctly.

 

Got a sound clip! It’s quiet, but you can definitely hear it under the steering wheel. What is this?