My 2010 Mercury Grand Marquis did not come equipped with factory fog lights. I would like to know if they can be installed and can the original wiring harness be used and does it have a connector? If not, how would this be accomplished?

Thank you!!

 

An aftermarket Fog Light Kit can be had from HELLA -- usually comes with any necessary wire, switch and relays.
HELLA has been a leader in lighting for European Rally Cars for decades.
I have had excellent results from the HELLA Daytime Running (LED) Lights Kit on the famous 95 MERC -- over 10 years with no problems.
.

'95 MERC at Flaming Gorge, UTAH