You should always use a relay for fog lights, using a lo-beam 12v line to run to a switch and than to pin 85 (coil pin) of your relay.
A 30 amp relay will do, this will give you the capability of "up to" 360 watt lighting which is more than adequate for fogs.
I have seen small decals for switches..... IIRC maybe on EBAY.
QUOTE=billzcat1;wsar10 is right on point on this oil thread - as usual. Anyone reading this would be well-served taking his advice.
-03 WJ laredo 4.0 120k a few minor mods
-93 XJ 5spd, 3" zone lift