Big 3 Upgrade: Planning Stage (Input Encouraged)

[The Architect]

well this morning when i started my car and started monitoring voltage a saw a drastic difference in behavior from my electrical system.

for one the voltage hung around 14.45-14.5 for about 3 minutes or so before calming down to 14.3-14.4 and then finally stayin at 14.35/6 which is....very nice and unexpected.

The voltage seems very stable also (with the occasional hiccup) even with loud music and at idle in Drive it stays around 13.6-13.8 and in P or N its around 13.9-14.1

I dont know what to attribute it to but im about to go redo as much of my engine wiring as i can for preventative maintenance before it gets dark.