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Wiring to cig lighter plug

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stevo

Joined: Nov 06 2007
Posts: 2


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Post Tue Nov 06, 2007 3:50 pm

I have a 2000 VW Jetta and I got behind the cig lighter plug and there is 3 wires (red, orange and grey) the cig lighter has a light around it and in the ash tray that dims, but I don't know which wires to hook up my 2 - 9.5in LED flex tubes.

right now I got a series of LEDs to work, but I think my wiring is wrong and could cause problems, Here is a picture. Thanks in advance.

PwrRngr

Joined: Jul 19 2007
Posts: 4407


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Post Tue Nov 06, 2007 4:40 pm

I would say it's most likely how you wired the second one. Get a cheap multimeter and find out which wire is the ground and which wire is positive voltage (most likely red is +12). You don't really need a fuse because your cigarette lighter is already fused.
Kevin_S

Joined: Jul 20 2003
Posts: 2809
Location: WV


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Post Tue Nov 06, 2007 4:51 pm

i know this is completely irrelevant but most people post these really crappy diagrams...yours are very nice.
...just wanted to compliment lol
banned from SG

Joined: Jul 01 2003
Posts: 5127


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Post Tue Nov 06, 2007 6:26 pm

Yeah, +1 to the nice diagrams. I know mine look like spaghetti
clutch1

Joined: Oct 08 2006
Posts: 1928
Location: around hurr.


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Post Tue Nov 06, 2007 7:13 pm

Your cig lighter has 3 wires going into it??
Weird, I've never seen that before, maybe it's just those crazy German's and their engineering at work though. haha.

edit: neeevermind. I missed the dimming light part. Reading owns me this time. icon_redface.gif


Indeed, though. you should only be hooked to one of the two power wires. connect a led to each wire seprately, and whiever doesn't dim the LED is the correct oneto run it on.
Blue_TC_Man

Joined: Oct 02 2007
Posts: 48
Location: Raleigh/Lenoir NC


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Post Tue Nov 06, 2007 8:53 pm

VW is red power, gray/silver/black/or white with black strip is ground, orange/purple/green is normally a secondary power wire to stuff like lights in the cig lighter so your second diagram is right minus the fuse.
Aken

Joined: Feb 12 2003
Posts: 10885


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Post Tue Nov 06, 2007 9:58 pm

Blue_TC_Man wrote:
your second diagram is right minus the fuse.

Yeah, lose the fuse. Double check what does what with the multimeter just in case (whatever wire causes the dimming you do NOT want hooked up to the cathodes).

Or you could do a cleaner, more professional install, and run your own wire from the battery or use an add-a-circuit from the fuse box.
stevo

Joined: Nov 06 2007
Posts: 2


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Post Wed Nov 07, 2007 7:42 am

Thanks for everyones help. I borrowed a voltmeter last night from a friend and found VW wire colors online, this is what I learned:

Grey wire with Blue stripe is the dash lights/dimmer wire
Orange is actually Brown and is the ground wire
Red with black stripe is the 12v power to the cig plug

I used the voltmeter and got 11.33v when I hook positive to the grey/blue and negative to the Brown. this is good because I can dim the footwell lights with the rest of the dash.
CoppellStereo

Joined: Nov 12 2006
Posts: 181


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Post Wed Nov 07, 2007 1:10 pm

yeah, just tap your switched 12v+ source.
Then you can ground to the chassis or back to the cig lighter's ground wire.
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