The install of the lights should be pretty simple, especially if you are putting them on a brush guard. A lot of guards come with pre-drilled holes for off road lights. As far as wiring, check out THIS thread. A ton of good info and diagrams on how to wire them up.
Id run the wires through the firewall grommet, just above the brake/gas pedals - then, wherever you want the switch to reside. Omelet has a few directions for switch routing and relay wiring. I've run all my wires through that grommet without issue - remote start, amp and all of my LYTES
2006 5.7 WK ORT | DiabloSport Predator | FlyinRyan Custom TCM Tune & Ported Throttle Body | (Painted Red) OME HD | Moto Metal 951's | 265/70/17 Duratrac's | Custom SEGUARO Front Bumper | Magnaflow Cat Back 16631 | Airaid Intake | Jet 180 T-Stat | BTT Catch Can | XenonDepot 5000 HID Lows | LED Fogs | JR's Custom Shorty Antenna | De-badged | Rola Roof Rack | MOAR LYTES: Eagle Eye HID Spots | Rigid D2's (Rear) | 7" LED SYDE Lights | 4xGuard Front Skid | Aries Rear Tail Light Guards | FULL Interior LED's | Interior VINYL Wrap | (Painted Red) Strut Bar | Pioneer AVH-4200 | Custom Rear Camera | (Painted Red) Calipers | Gorilla Black Locking "System" | SRT8 Shift Knob | (BUILD THREAD)
I am so doing the behind the grill lights! Thats an awesome idea! It seems like it will deter people from ripping your lights off... I will run out to get the materials tomorrow and pics will soon follow!