autometer volt guage

[nkymain485]

i bought a volt guage from a friend of mine and of course it has no instructions, on the back it has like the wiring for a ground and then an s and i. anyone wanna tell me where the s hooks up and where the i hooks up

 

[CRX-YEM]

S would most likley = source (connect to battery)
I would most likley = ignition (or a switch power soucre so it turn off when the car is off)

 

[mugen]

agree, its only a volt meter... Its like using an external volt meter to check the volts in a stereo except its a gauge in your car.