Difference between 80 & 81 wiring colors

[81classic]

Does anybody know when GM switched the wiring colors around in the g-body's? I know my 78 was different from my 81, I'm looking at picking up a 80 dash harness but would like the colors to match. If you have access to 80 diagrams I'd like to take a look at that also. TIA for any help

 

[Doober]

When did they start with the computer? My '81 has it, not sure if '80 will though.

 

[shvrolay]

Here's the '80 diagrams:

1980

HTH