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Running/ parking lights. HELP

880 views 3 replies 3 participants last post by  Blade. 
#1 ·
I have a 2008 Silverado. Where can I find a parking light wire in the cab that does not dim with controls. I'm trying to wire cab lights on the roof. What wire can I connect to? I tried the headlight switch and just about everything short of going through the fire wall.
 
#4 ·
Well.. Your best bet is to test ALL wires that exit your light switch and see which has power when you turn on your lights, then see if it dims. It'll show on the test light if you're using one.

I personally would pull trigger power from a marker light myself or the fuse block either for headlamps, or park lamps. It'll be the easiest route and can have the relay, power, ground, trigger wire all in the engine bay and only run one wire into the cab. Which could be pushed through the firewall - cab grommet.
 
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