I have a 1975 1.8 that does not have the appearance package. I am keeping the car all stock - but I would like to add Oil pressure/Temp gauges and voltage.

Does the stock harness include any of these connections where the console would be?

Definitely not oil pressure. No 914 had oil pressure gauges. I though all the cars had the wiring for the console gauges after 72.
@IRONHILLRESTORATIONS mentioned a wire that can be repurpised for oil pressure. Possible rear window defroster. You can pull up your caroet and see if the connectors are by the tunnel for console gauges.

All the plugs are there for the clock, temp and volt gauges. You can use the hot and ground from clock to power any other gauge you want to install.

Thanks very much

That’s for a 6. On a 6 conversion you can use the heater blower switch wire. For an OP gauge you’ll have to run a wire