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Old 11-24-2003, 04:13 PM   #1
djcontra
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How do you install interior neons? Which 12v wires do I cut?

I'm actually installing interior LED lighting. I've begun to mount some custom made red led modules in my rear view mirror, footwells, door handles, glove box, etc, but what is the source of 12v power to connect it to? I'd really love for some of the leds to fade out with the roof lighting, and the footwell&door-handle leds to stay on while driving.

any help would be appreciated, thanks!
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Last edited by djcontra; 11-24-2003 at 04:15 PM.
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Old 11-24-2003, 04:25 PM   #2
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Re: How do you install interior neons? Which 12v wires do I cut?

Quote:
Originally posted by djcontra
I'm actually installing interior LED lighting. I've begun to mount some custom made red led modules in my rear view mirror, footwells, door handles, glove box, etc, but what is the source of 12v power to connect it to? I'd really love for some of the leds to fade out with the roof lighting, and the footwell&door-handle leds to stay on while driving.

any help would be appreciated, thanks!
Takes way too long to explain, but if you come to feast tonight I'll explain everything you need to know. Later ,Big tommy T...
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Old 11-24-2003, 04:35 PM   #3
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Re: Re: How do you install interior neons? Which 12v wires do I cut?

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Originally posted by T-spec
Takes way too long to explain, but if you come to feast tonight I'll explain everything you need to know. Later ,Big tommy T...
Ahh, give me a hint for now
I've got everything soldered to little breadboards, resistors and all, I just need to know where to connect the positive and negative
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 11-24-2003, 04:42 PM   #4
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Whatever you want to fade out with the dome light, splice into the domelight wires, doesn't matter which one is +/-, if one way doesn't work, just reverse the polarities. As for the ones that will be on constantly, maybe wire in to a switched ignition circuit, or if you only want them on only at night maybe wire them into the headlight switch.
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Old 11-24-2003, 04:50 PM   #5
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Quote:
Originally posted by T-spec
Whatever you want to fade out with the dome light, splice into the domelight wires, doesn't matter which one is +/-, if one way doesn't work, just reverse the polarities. As for the ones that will be on constantly, maybe wire in to a switched ignition circuit, or if you only want them on only at night maybe wire them into the headlight switch.
I was thinking of connecting the footwell and doorhandle leds to the dashboard dimmer dial....do you think that would work?
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 11-24-2003, 04:56 PM   #6
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Quote:
Originally posted by djcontra
I was thinking of connecting the footwell and doorhandle leds to the dashboard dimmer dial....do you think that would work?
Yup, led's pull such little current that you can wire them right in to the circuit, no need for an extra relay for extra current loads, totally safe, go with it!
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Old 11-24-2003, 04:57 PM   #7
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That dimmer dial may not have not power and overheat. I'd wire the footwell/door handle ones to the parking light. You can only see them at night anyway and I don't really see the point in dimming them.
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Old 11-24-2003, 06:13 PM   #8
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well I've tried the dimmer dial, and the foglight switch, but both don't work for lighting up my 12 led modules.
For now I've hard wired up the passenger side to the flashlight socket in the glovebox to see how everything will look. (I'll of course make it a clean install further down the road, but I need to look at some wiring schematics beforehand)
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 11-24-2003, 07:07 PM   #9
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i wired some of my led's for some switches into an interior 12 volt lamp i think it was the ashtray light i hooked it up to, and when i use my dimmer to lower the intensity of the dashboard and the control buttons, my led's dim as well
just make sure u have the right resistors
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Old 11-24-2003, 08:47 PM   #10
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Quote:
Originally posted by djcontra
well I've tried the dimmer dial, and the foglight switch, but both don't work for lighting up my 12 led modules.
For now I've hard wired up the passenger side to the flashlight socket in the glovebox to see how everything will look. (I'll of course make it a clean install further down the road, but I need to look at some wiring schematics beforehand)
make sure the polarities are right, led's will only let current flow one way. If you try reversing the wires it should work, good luck
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Old 11-24-2003, 09:26 PM   #11
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No worries, I tried switching polarities to see if the leds would light on the two switches, but no luck.
Niko, I'll check if my car has lights in the ashtray, and if it does, then I think I've found my solution!
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'94 Supercharged E36 325is (150,000 original km's)
Mods
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

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Old 11-25-2003, 07:06 PM   #12
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Re: Re: Re: How do you install interior neons? Which 12v wires do I cut?

Quote:
Originally posted by djcontra
Ahh, give me a hint for now
I've got everything soldered to little breadboards, resistors and all, I just need to know where to connect the positive and negative
simply tap into any freakin 12v wires you want that stay on when u want. Not really tough to do... sounds ilke you got everyting else done... what color LED's did you use? ... I was going to go with blue.. but ended up going red... and have to say, it actually looks really good....
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