Strange high-pitched noise in my BYD Seal Premium 2024 — even when parked or powered off

Hi everyone, I just took delivery of my BYD Seal Premium 2024 on May 22, 2025, and I’ve been noticing a strange high-pitched whining sound.

Here’s what happens: • The sound occurs when I press the accelerator • It stops immediately when I press the brake • It also happens while parked and even after powering off the car • The noise seems to come from the driver side area inside the cabin

I already visited the BYD service center — the technician heard the sound too but couldn’t locate the source.

Has anyone else experienced something like this?

Thanks in advance for any help!