AJ,
By "GT round grill lights" I am assuming you mean FOG LIGHTS, Those are the only stock round lights in the grill. These are sold as individual parts or as a kit, from any Mustang supply house. I have installed them on my fastback and it's an easy job, but be aware, you must replace the original grille bars with bars with the fog light mount on them as well as add the lights themselves and all the wiring and switch. The entire kit will run between $250 and$300. But be careful----Quality differs between suppliers!!!! If you need more info, e-mail me at
jaybarbara@yahoo.com. I live in Boca Raton, so we'r practically next door neighbors!
Jay67fast