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Old 07-18-2012, 03:51 PM   #1
rdecker20
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Join Date: Feb 2012
Chapter/Region: Tri-State
Location: clark nj
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2005 sti

Default Quick question

I need to tap into a wire that is only on while cranking preferably under the dash somewhere. Also in an 05 sti. If anyone could help me quick I'd appreciate it. Thanks
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Old 07-18-2012, 09:07 PM   #2
aerosaaber
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A wire that has power only when cranking? I think the only wire that fits the description would be the one that carries the signal from the ignition to starter solenoid (or wherever it goes in between)

what is it for?
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Old 07-18-2012, 10:46 PM   #3
rdecker20
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I may have not been specific enough. I need 12v to power a relay only while the car is running so the relay is not energized while the car is off.
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Old 07-18-2012, 11:52 PM   #4
El-ZackO
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Stereo power line? Or possibly amp power line (if amp/sub installed)
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Old 07-19-2012, 10:05 AM   #5
J.Gibbs
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You need a switched power source. Radio or cig lighter power wires will work fine. Just test whatever wire you use with a test light and make sure it shuts off when the ignition is turned off
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Old 07-19-2012, 09:21 PM   #6
aerosaaber
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OK, that makes a lot more sense.
TONS of options for that, I usually use an "add-a-circuit" that plugs into a fuse location and give me a wire w/ it's own fuse. I can't remember which fuse I normally use.
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Old 07-19-2012, 11:10 PM   #7
J.Gibbs
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Quote:
Originally Posted by aerosaaber
OK, that makes a lot more sense.
TONS of options for that, I usually use an "add-a-circuit" that plugs into a fuse location and give me a wire w/ it's own fuse. I can't remember which fuse I normally use.
I always use inline fuses with any new power wire that I add which isn't wired into a fuse block. Better safe than sorry
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Old 07-20-2012, 08:55 PM   #8
aerosaaber
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fuses are great, until they start acting all "hey I look ok, but really I've failed, but I look ok so go search for a problem for 3 hours before just swapping me with a good fuse and solve the problem" lol rage.
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Old 07-20-2012, 08:56 PM   #9
aerosaaber
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WRC Blue

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(I always run fuses on stuff, I don't want to burn my car down)
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