2005 Legacy N/A with a little over 200K mils.
In the last week, I've noticed a humming sound from around the dash immediately after I start the car. It goes away in a few seconds. I don't know if it's a relay or something.
Typically, I drive to work, leave it parked all day and when I leave at night, the same hum occurs at start up for a few seconds.
Any ideas?