An easy way to wire the fogs is to use a relay that is activated by the low
beam signal.  When the lows are on and the switch is closed the fogs are
lit.  Turning off the switch or switching to high or to headlights off turns
off the fogs.

In Kalifornia, it's not 'legal' to run foglights and high beams or foglights
without low beams.

YMMV since apparently the state congresscritters are terminally stupid here
in Kalifornia.

p (subscribes to the VTDBO theory of government)