Take a feed from the main beam on the drivers side light, its a yellow wire with a blue stripe.





Double check your own car it may be different!

The best place to break into this wire is down at the loom as shown below...



A good place to mount the relay is shown below... (use a relay with a built in fuse)



The main +12v feed to the relay can be taken from the fuse box as shown below...



You have to file out a small half circle on the fuse box cover to let the wire through...



There's a handy little hole where you can bring your new loom out to the front of the car..



If you want to mount an optional switch on the inside of your car you have to get wires through the bulkhead. The best place (if a little tricky) is shown below...



Push the thin plastic cover out the way and you will see the loom. Feed your wires through the same rubber grommet.



If you have auto leveling headlights then you will have a blank space which is ideal for the switch..



Have fun! Get wiring.