Help on identifying fuses

[Dakes55]

Can anyone help to identify these fuses and electrics which are located behind the right hand side panel in the boot on a 2002 d2 2.8 quattro, I cant find any information on these in manuals or on the internet, im am curious about what the red square part is, it looks to me like some sort of relay holder, there is also a 60 amp fuse located there, I have some issues with my rear screen heater not working and thought these maybe related to the problem.