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Old 08-21-2009, 03:16 AM   #1
ZZen330
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Guys - help me find a switched 12v wire to tap please!

Hey all,

I need an easy to access switched 12v (on only when ignition) somewhere in the dash near the steering column or behind the sunglass/ashtray assembly area.

I'll be hardwiring a female cig lighter socket in there for a stealth install of an accessory.

I found one reference to a purple wire coming down the steering column that works in ignition position 1.

Is that easy to tap into? What's my best option here?

Also, any easy spot in that area to connect the ground wire to?

I'll be doing a project this weekend.

Thanks!
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Old 08-21-2009, 03:22 AM   #2
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Tap the power and ground from the stock cigarette lighter location.
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Old 08-21-2009, 04:30 AM   #3
ZZen330
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Hmm, that sounds like a good idea. Would I just use a couple of T taps?

But I think that is an always on 12v. I'll be plugging an iPhone charger into the female socket and leaving it plugged in? Is that bad if it's always on? Actually now that I think of it, when he phone is not plugged in the orange light on the charger turns off so it wouldn't be active or drawing power if left in the always on socket? No issues with this?

I also found someone saying this: "Glove Box fuse box... There's a bunch in there, its not that hard to feed a wire under the center console. Otherwise you are messing with high amperage ignition wires." to a guy who the used fuse #7. But I don't want to run wires over there.

Tapping exisitng cig lighter seems easiest route.
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Old 08-21-2009, 11:18 AM   #4
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I don't like cutting or tapping into factory wiring much. I ran a wire from the fuse panel. All you need is a voltmeter or test light and start probing the empty spots until you find one that turns hot with the key on. Then you take a male spade on a wire and stick it in there.
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Old 08-21-2009, 01:23 PM   #5
ZZen330
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Hmm, ok..so the fuse box is behind the glovebox right? So find a switched spot then run a red 12g wire from there into the console area to the female cigarette socket and run the ground to something. Yeah I'd prefer not to tap into factory wiring but we'll see.

Thanks for the info!
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Old 08-21-2009, 02:46 PM   #6
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Quote:
Originally Posted by ZZen330 View Post
Hmm, ok..so the fuse box is behind the glovebox right? So find a switched spot then run a red 12g wire from there into the console area to the female cigarette socket and run the ground to something. Yeah I'd prefer not to tap into factory wiring but we'll see.

Thanks for the info!
The fusebox is more "above" the glovebox than behind it. When you open the glovebox, there will little white plastic tabs on the top. Swivel them to the side and the fusebox will drop down.
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Old 08-21-2009, 06:33 PM   #7
ZZen330
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The fusebox is more "above" the glovebox than behind it. When you open the glovebox, there will little white plastic tabs on the top. Swivel them to the side and the fusebox will drop down.
Great thanks!

Any chance anyone already knows an empty switched spot in the fuse box?
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Old 08-21-2009, 06:37 PM   #8
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i don't think anyone can tell you for sure as the spot changes depending on your car and the options you have
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Old 08-21-2009, 07:47 PM   #9
BmwAudio32
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I'd recommend using one of these if your going with the fusebox idea:

http://www.amazon.com/gp/product/B00...4NABB3NAZDVWQV
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Old 08-22-2009, 01:55 AM   #10
ZZen330
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I'd recommend using one of these if your going with the fusebox idea:

http://www.amazon.com/gp/product/B00...4NABB3NAZDVWQV
Yup! I picked one of those up earlier today. There's a fuse for garage door opener which is switched and I don't havethat option in my car so that will be the fuse spot I'll try to use/tap.
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Old 08-26-2009, 02:04 AM   #11
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Ended up using an empty switched slot....number 23 or 24 can't remember exactly. Works fine, no splicing wires for power.
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