Actually I had a color coded wiring diagram made at an office depot years ago when I first got the car. Got to know those 27 wires befor I gotter runnin. I Googled 73 duster wiring diagram and pulled up images. Did that at the office Depot and they just made copies for me and blew them up. I think I paid a $1.87 for the two and one of them is like a 2 foot by 2 foot copy all blown up and color. I shouldn't get into much trouble with the wiring as I'm looking to redirect/tighten up more so than reconfigure. No more plug in the firewall, everything redirected under the fenders.