I Did this install with a Itellitronix 5 gauge universal kit. I bought an electrical plug kit and wired the intellintronix gauges into the plug (See photo). I did not use their turn signal indicators as I did not care for them, I instead mounted green led lights and tapped them into the turn signal wires. Now on the other side of the electrical plug that I installed (not pictured) I soldered nails to the end of each wire and plugged them directly into the factory harness plug that attached to the original gauge unit. You figure out what wire does what by tracing it on the original gauge panel, but a wiring diagram will help you with any questions, tach and oil pressure were ran thru the firewall to the respective locations on the engine.