I posted this on the thread for 05's. It will work on all years.
It just requires just a little bit of wiring under the hood.
Supplies need
1 auto Relay 20amp min.
14 gage wire
18 gage wire
2 fuse holders
1 15amp fuse
1 1-2amp fuse
See this schematic from KC Hi-Lites. This is for their back-up lights but it’s the same circuit. Follow my directions below.
http://www.kchilites.com/faq/instructio ... backup.pdf The power lead Terminal 30 on the relay goes to the battery. For the fac. Fogs only use a 15amp fuse. Terminal 87 hooks to the power lead on the fog lights. You can use scotch locks to make the connection. Use 14gage wire for both of these connections.
Terminal 85 the white wire in the diagram hooks to the High Beam power lead. You will want a 1-2amp fuse on this to protect the factory lights. Lastly 86 goes to ground. The 18gage wire is used here. If you are interested in being able to turn this feature on and off. You can mount a switch inside and run the white wire thru it.
If you have state inspections to deal with just unplug the relay. If you have any questions just let me know.
Jason