Porsche Boxsters are equipped with an alarm feature which notifies you when there is a breach in the passenger compartment, using infra-red motion sensors located near the map light (above your rearview mirror). The Porsche red clip activates your Boxster 's motion sensor alarm when your top is down, allowing the alarm to trigger if someone reaches into your vehicle. Great for leaving the top down in the summer. It will also prevent your vehicle 's convertible top from accidentally closing, (such as when the speedster humps are attached to your vehicle). Clip snaps into same location as your convertible top latch.