Genuine OEM Audi Alarm Siren, part number 8L0951605A. This critical component of the vehicle's security system is responsible for emitting a loud, audible warning when the alarm is triggered. It serves as a primary deterrent against theft and alerts the owner to potential security breaches. Weighing 0.222 kg, this siren is designed for reliable operation. Using a genuine OEM alarm siren ensures proper integration with the vehicle's electrical system and consistent, effective performance in security situations.