it light's up on the key but the car doesn't reactTry the key battery.
Car has had new alternator a couple of weeks ago, and swapped the battery from mates that he only bought a couple of days ago.
Changed the battery in the key fob straight away, all terminals and pcb board look ok.
This is the wiring loom earth mentioned in post 6.It should bolt to the rear of the gearbox behind the battery.
View attachment 1362209
Very possible.Could one broken earth really cause all the fault's with the windows light's wipers etc
and all the relays clicking.
I'll check this wire tomorrow thanks.