Welp, there are a few relays on that side of the car, upper area, but they're in the engine compartment on the passenger's side... I dunno if you could hear any of them buzzing from inside the car, but there are four of them underneath the plastic shroud on the passengers' side, right in front of the strut that holds the hood up. I would open up the hood & perhaps remove that shroud, if necessary to see if it's any louder... if so, it could be any of those.
There are also literally a dozen of them underneath the passenger's side floorboard - I would think if it truly is a relay and you're hearing it from inside the car, it would more likely to be one of those - could just "sound" like it's coming from behind the dash.
