THIS IS FOR MK1 ONLY
IF THIS DONT WORK DONT COME CRYING TO ME, I BURNT OUT 5 SWITCHES DOING THIS
1- remove hazard switch (please refer to Haynes)
2- After removing the switch, you will see two locking taps, press these in and pull the switch apart, (NOTE WATCH OUT FOR FLYING SPRINGS)
you will now have this
3- PHOTO 1, get some wire, solder it so the blue line
4- PHOTO 2, slightly straighten out the lumpy bits, labelled with 'ON'
5- rebuild switch, you may need to cut a little of the bottom of the switch so the extra wires don't get trapped,
6- tape the switch closed and hide behind the dash,
7- run the two new wires to a simple LED rocker switch,
8- fit two wires to rocker switch, also earth the LED to chassis, this will make the LED flash with the relay clicks,
9- fit rocker switch
SORTED, enjoy