Thanks Mate

Unfortunatley its not the case.

I have cleaned the earth wires and where it bolts to the chassis, new bolt also installed. All bright and shiny.

Done a clean, spray contact cleaner in some of the connections to the horn, washer and wiper.

Along the way when i was moving wiring to clean, the lights were flickering.

I suspect i have a dodgy wiring harness.

I also noticed the wiper motor was warm when checking the connections.

I will have to go over it all with a test light and see if it is the harness.

Fingers crossed it isnt as its no fun job swapping the harness etc out of the dash when i have just had the dash out and put all new bulbs in.....