Funny Electrical Buzzing Sound




I replaced a dead battery on my new 2008 within weeks of taking delivery. There seems to be a strange hum when starting and stopping the engine - almost sounds like an electrical short. Has anyone experienced this or does anyone know what is causing this. I will be able to take it to the selling dealer once I get a trailer. I have the car stored 60 miles away at the moment.
Thanks in advance !


