RE: Humming noise

[Randall Paquette <75313.1445@compuserve.com>]

I had a recent event that sounds similar:  Fuel pump - it was fairly loud and
from the back seat area.  I ran some injector cleaner and dry gas through it and
haven't hear a peep since (6months).  I think it was ice crystals???.

If it is your fuel pump - and you can't remedy it with a "cleaning" its big
bucks.
Your car is fairly new - may be a flukey abs sensor, or even the little fan that
sucks in the air from the cabin to check temp (my 1990 little motor has bad
bearings now and I hear it every morning).  

Good luck - let us know what you find..

Randy Paquette