building my own wire harness

i had a 65 Impala in high school the guy before me wired EVERYTHING in red!Wiring nightmare.Thanks for the input guys.

Man you think that's bad. I used to work on forklifts for Hyster and they made some electric trucks that used all black wires. They had very tiny numbers printed on the wire every 6 inches and you had to use a magnifying glass to read the numbers to figure what was what. SHEEESH!!!