okay i bought 3 super blue prosport guages the other day i got boost, a/f, and oil pressure now how do i wire them in my 95 civic ex. and from what i understood they are red at first start then turnm blue and beep right??

 

Didn't they come with some instructions? The af gauge is garbage unless u just like the lights or it's a wideband. So on most lit gauges u have a ground, a hot with parking lights, and a sensor wire, sometimes u will have a constant 12+. The boost I'm sure has a ground and a switched 12+, the oil is the same unless it's electronic, then it will be a switched 12+ a ground and a sensor wire, and the af gauge is the same as the electronic oil pressure.