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gauge wiring

  1. Gauge install, minor wiring problem and need help

    Hey guys, I got 3 gauges (boost, oil pressure and volts) and am currently trying to get them wired up. The car is a 00' Civic EX. Each gauge has a red wire for a 12v constant, ground, and headlight switch. The oil pressure and volt gauges both have 2 additional posts, one for 12v and another...