Hooking it into one of the wires that actually plug into the cluster itself.. That's what I did with mine when I used to have them, and on my friends del Sol too.. That way, when you turn on the lights, the gauges turn on too.. And the wire that I used enabled me to use my factory dimmer with the indiglo gauges.. Then I just stuffed the gay little rotary dimmer behind the dash; I couldn't find a good place to mount it anyway..crash6934 said:how else can u wire it?