Re: Powering HID Ballasts
You don't mention which light set you are replacing - I'll assume the headlights...
In the case of replacing the fog lights with HIDs, there is enough juice in the stock wiring supply to power the lights without having to wire the relays to the battery. I wired my fog HIDs directly to the stock harness.
The HID bulbs draw less amperage than stock halogens, even (I think) during the initial surge.
If we knew what is was we were doing, it would not be called research, would it? Albert Einstein
2014 WK2 Limited 4X4 Diesel/LGII/ORAII/ATG/GDE Hot Tune/DEF Plate/3000K HID Fogs/aFe Pro Dry S/WeatherFlecters/"Eugene" Decal
2000 WJ Laredo 4X4 4.7L/QD/ORP/OME HD Lift/Addcos/Stillens