
The rear fusebox is located in the boot, behind the right hand side panel. The panel should just pull outwards and then you'll see the fusebox and rear electrical centre (also the stock amp if it was fitted at the factory).
This documentation details what each of those fuses are. The image is clicky so you can view a larger version if required.
There's another page with details of the front fuse box layout.

Fuse |
Rating |
Circuit |
F1 |
|
Maxifuse |
F2 |
|
Maxifuse |
F3 |
|
Maxifuse |
F4 |
|
Maxifuse |
F5 |
|
Maxifuse |
F6 |
30A |
LH Rear Door Control unit |
F7 |
30A |
RH Rear Door Control unit |
F8 |
20A |
Trailer |
F9 |
|
Spare |
F10 |
30A |
High level stop light, trailer light, rear lighting, indicators, reversing lights, boot light |
F11 |
|
Spare |
F12 |
|
Spare |
F13 |
|
Spare |
F14 |
15A |
Rear Wiper |
F15 |
15A |
LH Heated Seat |
F16 |
15A |
RH heated set |
F17 |
7.5A |
Automatic interrior Mirror, rain sensor |
F18 |
15A |
Sunroof |
F19 |
7.5A |
Telematic control unit |
F20 |
7.5A |
DVD Player |
F21 |
7.5A |
Rear door control unit, parking sensor control unit |
F22 |
30A |
Audio Amplifier |
F23 |
|
Spare |
F24 |
10A |
Alarm, CD Changer |
F25 |
30A |
Drivers Electric Seat |
F26 |
30A |
Rear foglights, number plate light, boot lights, trailer lights, rear lighting, stop lights, indicators, reversing lights |
F27 |
|
Spare |
F28 |
|
Spare |
F29 |
|
Spare |