hello all i was resently asked by a friend who owns a flat bed tow truck equipped with a federal signal lengend LPX tow man bar its a 72" unit thats only got the corner modules and 4 inboard warning modules its got 2 rear facing work lights and the stop turn tail lights as well there is alot of dead space in the bar he wants to try and get populated any ideas on how to populate the empty spaces i eas thinking of maybe some whelen 500s or something to add into the bar but not sure if it would work i dont know much about the internals of the legend bars so any info about what i could do to help the guy out would be great buying a new bar is not an option as hes on a limited budget i was thinking of using the flasher from a responder minibar to drive the additional heads