what wires do you guys tap into for the lights on the gauges. i tried them all and they are all power all the time? i want the lights to go on and off with the light switch
oh ya the lights are for my egt and boost

 

You can't have tried them all.

For dash mounted gauges the easiest place is the cigarette lighter. If they're A-pillar mounted go to the headlight switch (or run a long wire).

 

ya ended up running a long wire to the cigarette lighter