Originally Posted by jnj99
I currently have 2013 v6 mustang with the fog lights. Do I need to install a new wiring harness or can I just simply buy a bulb converter (H11 to LED or H10) and connect to GT fog lights?
You will simply just need to change the connecting "end" to match the bulb.
For some reason, Ford made the GT fogs H11's, and the V6 lower valance fog lights are H10's; a different connector.
So, you can buy a conversion type connector (converts your V6 H10's to GT H11's) or you can buy H11 connectors, cut off the H10's you have on your V6 harness now, and solder them on and finish it off with heat shrink tubing (don't use cheap crimp connections, they never hold up).
I bought the pre-made conversion connectors, and was glad I did, because I ended up removing the GT grill and fog lights, replaced it with a Boss 302 grill (with the block off GT fog light plates), and then replaced the lower front valance with the CS/Boss lower valance and fog lights. This setup reverts back to H10 fog lamps!!!