Noises under hood near belt
i have a grinding, rattling, whining sound coming from under my hood. Up until today it was just making that noise then it started making a new noise where it sounded like something was unthreading then all of a sudden all my dashboard lights came on and i hurried up and parked the car. As i put the car in park then my car just started accelerating on its own. What could this be? My janky repair guy thought it was the alternator but i need a second opinion cause when i unplugged one wire on my battery my car never died.