Danny D

Every time I turn on my headlights, I hear a high pitch whine that stays on while the headlights are on. Has anyone else experienced this problem with their 911? Any idea what it might be? Please refer to the attached video. (The sound is much worse in person.)

Some background: I just bought this 2013 Carrera S used from a dealership. I did not notice this whining noise, because it only comes on when the headlights on and I purchased the vehicle in the daytime.

Any help would be greatly appreciated!