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"Sireny" sound when engine not on?

Messages
21
Reactions
9
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Location
New Jersey
Vehicle
2025 Explorer ST
#1
In my 2025, I'm getting a weird ascending tone from the car audio when I'm watching things with the accessory mode on and the engine off. Does anyone know what this is, or if there's a way to "fix" it?

It sounds somewhat like a siren, starting from a low tone and going higher. Are others experiencing this too? It happens in multiple locations, so I don't suspect location-based interference.
 

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