0+ (Unillustrated Parts)  
1+ Under bonnet security switch  
2+ Security sounder  
3+ Key transponder module  
4+ Flanged head screw  
5+ Key transponder module  
6+ Transmitter  
7+ Transmitter button kit  

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.