1+ Under bonnet security switch  
2+ Switch  
3+ Intrusion sensor  
4+ Security/valet switch  
5+ Self tapping pan head screw  
6+ Valet switch bezel  
7+ Key fob transmitter  
8+ Key fob transmitter  
9+ Battery  
10+ Light sensor  
11+ Intrusion sensor  
12+ Screw  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.