Davo,Davo said:That Black Box that houses the 2 x Yellow 20Amp Fuses is the Starter Relay.
If it is clicking when you hit the Starter Button it is a good sign.
There are 2 main big Terminals on it marked "B" and "M".
The "B" Should measure 12Volts all the time, it is from the Battery.
The "M" Should measure 12Volts when you hit the Starter Button. Try that and see what you find. If there is no 12V the problem is towards the Battery. If there is 12V on "M" the problem is towards the Starter Motor.
Check the Earth lead from the Battery too.
Check the Battery Terminals are not loose. Seem to have remembered reading that a few times on here.
I wish I read your thread a few minutes earlier. I thought I would disconnect the negative battery lead to ensure the electronics reboot and ....waalllaaaaaa!!! It was VERY loose! I tightened it up and now it works like a bought one.
Now I will be brave and reconnect the map switch.
Thanx