1+ Sunroof/lamp/garage door open module  
2+ Reflector  
3+ Interior lamp switch  
4+ Map lamp switch  
5+ Bulb  
6+ Bulb  
7+ Lens  
8+ Garage door open transceiver  
9+ Garage door open switch dolly  
10+ Sunroof switch dolly  
11+ Bulb  
12+ Thread forming 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.