I have a 2017 GTI SE DSG with 30k miles. I noticed recently that when my cars electronics are on it makes a high pitched whining noise. It sounds like an electronic component whining/buzzing. It’s independent of the engine running. It can be heard even if the ignition is in accessory mode. It’s constant while it’s on and stops immediately when it’s off. Any clues what this could be? It didn’t do this before.