ok i'm new here but trying to get my stang going. heres the story. i am swaping a 5l into a 4cyl. both cars are 1990. the 4cy was auto and the 5lis 5spd. now i have swaped everthing except the dash harness from both cars and i went to hook up the 5l engine harness and i have an extra plug on it. the dash harness on the 4cyl car has one brown 8 pin plug the 5l had 2 any hope i could wire the 2 together ordo i have toswitch the dash harness??

tks

 

thanks for looking i decieded to swap the dash harness. don'twant to butcher harness.