Starting a thread on some planned and unplanned wiring on my 72 as I get going working on it.
I just ordered this 18 x 24 wiring diagram for $36, including shipping. I love working from these really nicely laid out and colored diagrams. It's an artform!! I bought one for a 78 Triumph Spitfire that I picked up a few years ago and it's SOOOOOO valuable to have!
https://classiccarwiring.com/products/1972-chevy-chevelle-malibu-monte-carlo-color-wiring-diagram?variant=40725685207240