i dont see why people get so nervous when doing installs and are all afriad to attempt it. Defi gauges are by far the easiest gauges to install. Like drtaka said just tap into the clock harness. The 4 wires from the harness are the 4 wires you need to tap into from the control unit. It is so simple and they are even labeled on the clock piece that you remove so you know what each wire is.