dash gauge question

^^Google it^^ 5v linear regulator chip / IC The common chip /IC is called a 7805 regulator

http://www.earlycuda.org/techdocs/DashGaugeVR.pdf

An old thread

Let's talk instrument cluster voltage limiters!

Is RTE still in business?

and here: Likely the best/ clearest diagram

MoPar Instrument Cluster Regulator Update

Moparts but the wiring is not very clear

Moparts on the Web - Main Index

Various ramblings from FBBO

Fuel gauge conversion for 66 Charger