awesome man...i too have the LED's / strobe / Wig Wag set up in my S/T...i use it for Fire and EMS though...
j.vocaty...i'm almost positive you cannot run Wig Wags for Construction, wig wags are only supposed to be used on MARKED emergency vehicles...they are illegal for me to use as well even when responding, i just dont get in trouble (at least not yet) for them because i am "in" with most of the officers in my town...i'm sure josh is in the same position...for construction you should just use Amber lights be it LED or Strobe...anyone can use Amber lights as it is the nation wide symbol for Caution...also...on a study about emergency lights, Amber lights were proven best to warn motorists and deter them from the flashign vehicle thus avoiding accidents...that is why you will always see rear facing amber lights on all marked emergency vehicles, i have them on my S/T as well