Headlight wire to dim aftermarket gauges..

[TSi999]

Hi I see in my wideband instructions it tells me to wire the gauge to a headlight power switch. It says to NOT use the dimmer switch wire. Could someone give me an idea of the easiest wire to use for this?

Thanks!

 

[myaceofdiamonds]

providing this is only to light up the gauge, to be honest I used the cig lighter light power suply. it serves the same purpose. some may not like to do this but I havnt had any problems after 2 years of running my boost gauge. for the main power supply this diagram came from roadraceengineering.com got it? hope I could help.

 

[TSi999]

Thanks for the reply. This is not to power the gauge but to have it "dim" at night when the headlights are switched on. It says to use a wire that supplies power to the headlights but to not use a dimmer switch.