Genuine OEM Audi Anti-Theft Alarm System Siren, part number 1J0951605A. This electronic module is a key component of the vehicle's security system, designed to emit a loud audible warning when an unauthorized entry or tampering is detected. It is typically mounted in a secure location within the engine bay or underbody. Encased in a durable, weather-resistant plastic housing, it ensures reliable operation in various conditions. Using a genuine OEM siren guarantees seamless integration with the vehicle's electrical system and alarm module, providing dependable security and peace of mind.