I have a '91 LS400. I want to make it so the fog lights will come on with parking lights intead of only when the headlights are on. has anyone done this?? I assume changing the wires at the fog light relay would do it..but dont have a wiring diagram. any ideas?? Thanks

 

A good stereo shop that has good knowledge electricals should be able to do this easily, this is how I did mine.