Doesn't sound like the fuel pump priming to me. That's a steady mid-range whine that only lasts about 4 seconds, then stops, when it's operating properly. Yours sounds much higher-pitched and it's continuous. Does it stop when you start the engine? Any CELs?
yeah, mine does this. It's normal. I had a thread on it when I was trying to remove my ECU to send for Gotham reflash and no one answered. It's coming from the ECU, its sounds like it's registering data or something. Don't worry about it, dude. (This is my 2nd ECU, and both have made the noise) I had never noticed it before because the key is in the ignition and the electrics are on. You don't typically step outside to look in the motor at that point, you start the car.