90Q electrical issues

[Duncan Thomson]

Hi guys,

Having an issue with my '88 90Q. It has been sitting for far too long, 
and it's about time I got it through it's inspection.
Currently I am having an issue with some of the electrics.

I have lost the use of:
     indicators
     windscreen washer
     wipers
     fog lights
     power windows
     electric mirrors

I have removed checked and refitted the corresponding fuses to no avail.
Wondering if there is a likely candidate which would affect multiple 
systems like this?

Last work done was removal of the instrument cluster to have a go at 
fixing the odometer.
Unfortunately I couldn't get the speedo needle off, so all I 
accomplished was to break the needle cover. D'oh!

Any advice gratefully received!

Cheers
Duncan