Well, for both gauges you'll need to run the ground wire...my Voltmeter was just wired into a 12v ignition source Maybe that's wrong but it seemed to be reading the Voltage in the car. Oil pressure, no clue...what kind of gauges? They should come with instructions (although probably not vehicle specific) If you're not at all familiar with running wires and properly soldering connections, take it to a local shop
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Maybe that's wrong but it seemed to be reading the Voltage in the car. Oil pressure, no clue...what kind of gauges? They should come with instructions (although probably not vehicle specific) If you're not at all familiar with running wires and properly soldering connections, take it to a local shop 
