Basic guage just needs a + - and the A/F signal not sure what you are asking for. Look for the ignition positive and ground. They a/f signal you can get at the ecu.
where do you plan on mounting it? you need a switched positve, constant ground, and the signal wire. be sure to not cut the wire, just use a splice. the 02 sensors work off of resistance so if you cut any of the wire it will change.
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