I found the stock fog lights pretty useless. Of course my car being brand new I didn't want to go dep surgery or other tap wiremods (or add a bar) nor did I want a gimmicky "fix". So I opted for a decent improvement for low dollars. OK it screams gimmicky!!
My solution? Hella Optilux HB4 9006 55W Extreme Yellow XY Bulbs - no kidding they actually work and can be had under $20 for a pair. Not only do they look sweet (IMHO), on foggy morning drives they illuminate through the crud pretty well. I recommend them if you want to go yellow/amber.