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Old 08-28-2013, 11:22 AM   #5
stoickiwi is on a distinguished road
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Join Date: Jun 2012
Location: Virginia
Posts: 123

2008 Astra XR
Default Re: Headlight Switch Wiring Layout

Just tinkered with it this weekend with my multimeter. It looks like the black wire in the headlight switch is 12v ignition. That makes this job a lot easier than taking the radio out and running a wire to the fan switch yet again. The rear fog lights are functional with a relay I set up in the back when I installed the amber signals. I just need to work in the button under the euro switches I got from Jarrow. I also plan on opening up the gauges and putting in an LED indicator to let me know when the are on.


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