The car was an ex-drag car so it was missing the hvac stuff when I got it.....I put it all in from a donor car but it wont turn on the fan....All the fuses are good and everything I can find is plugged in....where should I start tracking down power? I'm stumped

BTW.....it's the car in the sig

 

Found a broken wire for the controls.........Now to put the dash back together