There's a 20A fuse called "Radio1" in the fuse box in the engine bay just in front of the battery.
A fuse called "Radio2" in the drivers kick well fuse box.
The electrical wiring diagram workshop manual is among the ones found here - manuals
From that it looks as though the following are some items associated in some way with the Radio2 fuse :-
Satnav, clock, wireless door locks, windows, interior light, mirrors, shift lock, a/c control, body ecu.
Seems quite a lot but that's just from looking at the car wiring diagrams and probably not taking all their power from there.
Hope that's of some help
TG