Well, I guess I spoke too soon...

...road tested the lights tonight, and everything was fine...for the first ten minutes...then POOF, they went out!

Blew the 15 amp fog light AUX fuse. I replaced it only to have it blow again. Tried one of my "circuit breaker" fuses to see if I could witness the failure...the fog lights would be very dim, and you could hear the amp load taxing the alternator, then it went out...this all in a fraction of a second.

What gives? Bad harness, short circuit somewhere, bad bulb?

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car