This is a newer sounding siren chirping sound with the ultrasonic motion/dome sensor and newer cover and the trunk tilt/incline sensor. Everything has been tested and is in great working condition I have  beige ultrasonic covers ,plug and play less then 10 minute to install get what you need to secure your ride  

I have the brackets for all sensors and siren 

I have beige  only please state in notes what color you need

Good luck happy