Yeah, a member in my department just got a 2010 F150 and is trying to find a way to mount TIR6 lights in the grille area, but does not want them on the outside, so we were looking for ideas.
Sorry, didn't get a chance for pics. The vertical LEDs are on "L" brackets mounted to the grill support with 1 1/2' spacers. THe horizontal ones are mounted to the plastic tab on the back of the grill on "L" brackets. The wires were run under the insulation and through the firewall.