Unknown noise from dash, somewhere behind steering area

If I drive slow and its quiet (windows up is better) I can hear what sounds like a muffled buzzing noise from somewhere inside the dash area, behind the steering wheel. I particularly hear it when I make sharp turns, usually left turns, but not always. Sometimes it happens as I'm slowing into a stop or just after the stop. The best way I can think to describe the sound (since buzzing isn't really it) is that it sounds like a fishing rod reel when you cast a line out slowly, and the spool is just unloading. Or, when you're reeling it in...like a gear winding. What is this?? I believe it may be related to the power steering being powered by the battery, and I'm hearing some kind of electrical device kick into action. It's pretty subtle, & if you had the radio on or had the window down, you'd most likely miss it. However, I have noticed it once or twice before but just ignored it. Now, just cruising around a parking lot looking for a space, I may have heard it about 3-4 times. Should I be concerned?

 

Hi Don, no, I specifically did that test and no sound. It seems to have a mind of its own, coming on a certain times for a couple seconds, usually when driving slowly and just before or after a turn. But it's happened approaching a stop at slow speeds and even after the stop. It's a clicking and winding like noise, like plastic gears spooling or something.