it's not very hard to do...
the main things need a:
-12v 40amp relay
-Fuse and Fuse Holder
-Switch
-Terminals
-wire 20amp and 5amp
1. tap the radio dimmer light wire or parking light wire in the front using 5amp cabling. (Nearest to the battery.
2. that wire goes to the switch then the wire goes to the engine bay.
3.hook the wire to the relay (85)
4.make power cable so make a fuse holder with 20amp wire that connects from the battery then connect it to the relay (30)
5.make a ground wire and connect it to the relay(86)
Now place a small amp fuse to the fuse holder and test it.
Use a test light which is connected to the ground and touch the relay (87). it should light up.
If you blew the parking ligth fuse connect the ground wire from the relay to the battery.
6. connect the driving lights +ve wire to the relay (87).
make sure you ground the driving light wire to the body.