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Home » Categories » Automotive » Automotive Repair » An Overview on How to install Neon & LED Interior car lights. » Reprint Rights » Printer Friendly

Antonio Gabellone (2,469)

An Overview on How to install Neon & LED Interior car lights.

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Submitted Tuesday, November 22, 2005
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So you've got your LED or Neon interior car lights, but you're now a bit confused as to where all the car interior neon lights and wires go?" Well fear not, we'll show all the "in's & out's" of this type of installation and the easiest way of doing it.

It's a good idea to disconnect the battery before installing any car light accessories. You can do this by disconnecting the negative battery cable and placing it to one side of the battery where it won't touch any part of the vehicles body. It's also wise to have your vehicles service manual handy for information about the specifics of the electrical system on your vehicle.

For interior car lights, the best places to mount the LED or neon tubes are under the dash on both sides just above where your feet go, but high enough so as not to kick the tubes or damage them. There are also many other places you can fit them and their location is only limited by your imagination.

To operate the lights manually, your going to need a switch located near you, so you'll need to buy a simple "2way toggle" switch (or use the switch that may have came with your neon/led tube kit) from your nearest custom car accessories store. This switch will be inserted into (in-line with) the main power wire that supplies the kit with 12Volt power.

Choose if you want your interior car lights to turn on automatically when the headlights are turned on, or if you want to control the lights separately with a "toggle" switch.

If you want the neon or LED tubes to light up automatically when the headlights are turned on, then you will need to find a wire under the dash near the steering column. This wire you are looking for is normally Red or Yellow, and it's supplying the "headlight control switch" with 12V power - you're going to have to "tap" into this wire to light-up your neon lights when the headlights are turned on.

If you want to be able to control the interior car lights separately from the headlights, (best option) then there's two ways you can do this...

1) The power wire can be connected directly to the Positive side of the car battery, or...

2) It can be connected to any 12V power wire from under the dashboard.

If you choose to tap into a power wire from behind the dash to power your interior car lights you'll also need to buy a "Circuit Tester" from your nearest custom car accessory store - they only cost about $10 dollars. To use this tester is simple, it looks like a pen with an earth wire hanging out the top of it and a clamp attached to the end of the wire, and it has a globe inside the middle of the pen, or on its end, which lights up when you have found power somewhere.

To complete the interior car lighting "electrical circuit" - you'll now just need to attach the earth wire coming out from the from your led or neon tubes to the chassis of the vehicle. You can do this in the same way as described above for the earth wire on the tester - anywhere where there is bare steel under the dash is always a good earth connection for your interior car lights, even if you find a screw under the dash that is screwed into bare steel and it is holding another wire in place as an earth, you can use this too as an earth location. The control panel earth wire will need to be securely screwed to the chassis of the vehicle or to any "Earth wire" to complete the power circuit.

After your "power" & "earth" connections are complete, your car interior neon lights should now work. If they appear dull and not real bright, then be sure to check that you have made GOOD earth and POWER connections.

That's it, you're all done - now all you have to do is put any plastic panels back into place that you may have removed, pack your tools up, and then head off to show your friends what a great look you've just created on your car - Enjoy!

Please see our "More-In-depth" and step-by-step picture illustrated instructions on the How to install Neon or LED interior car lights page.

About the Author:

Antonio Gabellone is the Owner/Author of All-Neon-Car-Lights.com - The Site is a great resource aimed at Neon Car Lights and LED lights with "life-time Warranties". Copyright© All-Neon-Car-Lights.com 2003-2009 - Permission is granted to reprint this article provided the webmaster supplies a *LIVE* link to the authors website.




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There are a total of 57 comments on this article.
Most recent comment threads on this article:


» left by Antonio (202 days 20 hours ago.)
Reader Rating: 5 out of 5
Hi there
 
Yes, the chassis is underneath the car and the best place to earth out a wire - even better, is the negative pole on the car battery if you can reach a wire there. But there is really no need for that, you can buy small "tennis bat" shaped wire connectors at your local auto accessories store.
 
Connect one of these to the end of the wire you want to earth, and then find ANY solid metal parts of the car under the dash - look up behind the cars control foot peddles - you may find there an earth wire that's already screwed into the cars metal.
 
If you get really stuck with this and can't find an earth location, i recommend running a wire straight to the car battery on the earth (negative) pole.
 
Hope this helps ;-)
 
Kind regards
 
Antonio

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» left by Anonymous (201 days 12 hours ago.)
Is there a way to connect LED's so that they come on when the doors are opened, and so that I can also use them when the car is on without the dome lights coming on?

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» left by Antonio (201 days 6 hours ago.)
Reader Rating: 5 out of 5
As for your neons coming on when either of the doors are opened, your going to need to "tap" into the power wire of your interior dome light, the one in the middle of the roof, to make them work.
 
This is where it gets a little tricky. You need to remove this interior dome light and locate the power wire on it that activates this light. You can do this by using a "curciut tester" as discribed on the instruction page above, or by simply finding the red wire or black wire with a white stripe, or a fully white wire that will be the power wire your going to tap into. Again, follow the instruction page above for full details on how to "tap" into existing wires.
 
Once you have found this power wire, you hook up the power (positive +) wire of the neons/leds to this wire and connect the ground (negative -) wire of the neons to the chassis of the car, or to any other earth (ground) location on the car. Once again, refer to the instruction page above for this.
 
I should note that, the interior dome light, normally has a "three-way" switch to activate it. On - Off - and doors-On. You'll need to tapp into the power wire that activates the dome light when the switch is in the "doors-On" position.
 
Once you've hooked up both the power and ground wires to the interior dome light, you only need to then mount your neons/leds in you desired locations and hide all the wires, and you'll be good to go.
 
You will need a main power switch "in-line" on the power wire if you want to activate the lights without turning the dome light on.
 
Hope this help
 
regards
 
Antonio

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» left by Jason (178 days 10 hours ago.)
I am planning on having two led lights under my dash and a round rocker switch placed somewhere convenient. I know i gotta hook the power wires of the led tubes to the switch power wire and the other switch power wire up to the battery. However, I want to hook that power wire up to the ignition wire in the fuse box so i can control the lights only when the car is turned on. can you further explain how to do this for me, thank you

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» left by Antonio (177 days 3 hours ago.)
Reader Rating: 5 out of 5
Hi Jason
 
We have a good set of detailed installation instructions on our website that shows you exactly how to do the install you want - You will see the link above in the article for "How to install Neon or LED interior car lights".
 
Hope this helps
 
Kind regards
 
Antonio

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» left by danny (97 days 14 hours ago.)
can you wire all 4 neontube to one switch is it safe?

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» left by Kingsley from Australia (90 days 19 hours ago.)
Reader Rating: 3.5 out of 5
Regarding the on/off switch: there are three tabs that need to be hooked up on switches. One is to the power supply eg to the positive side of the battery. The second is labelled ACC which I suppose means that the accessory eg. neon lights are connected to this. The third tab is labelled ground. My question is this: is this a ground for the switch itself? Or are all the accessories grounds attached to it? If so is this truly a ground since the switch is only plastic???

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» left by Antonio (90 days 10 hours ago.)
Reader Rating: 5 out of 5
Hi Kingsley
 
Yes, you are correct - it is a ground for the switch itself. All led/neon accessories have their own grounding wire. To Danny - Yes, all 4 wires can be connected to the one switch. But youneed to be sure that the amp rating on the switch is GREATER then that of the 4 neon/led tubes combined.
 
Hope this all helps
 
Kind regards
 
Antonio

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» left by Stefon from California (76 days 10 hours ago.)
Can I use the door switch to turn on/off the led lights so that when the door opens, they turn on and when the door is close, they are off...? Where can I find the wire that connects to this switch?
 
-Stefon

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» left by Mick from CA (74 days 12 hours ago.)
Reader Rating: 5 out of 5
So this is just a bypass from of the positive wires another power source? Do you need a in-line fuse from the power source that is used?

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» left by Antonio (72 days 23 hours ago.)
Reader Rating: 5 out of 5
To Stefon
 
Yes, you can use the door switch to activate the lights - you will find these switches in the door of the car and the wire for it will be behind the switch - you'll need to remove the switch to get at the wire.
 
To Mick - not sure i follow your question - please be more specific - thanks.
 
Kind regards
 
Antonio

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» left by Anonymous (70 days 13 hours ago.)
i want to connect two 10 inch neon tubes to my surround sound in my bedroom. i have plugged the positive and negaive wires into the Subwoofer connecters on my receiver. but they are not coming on. can you help?
 
-Shane

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» left by Antonio (68 days 2 hours ago.)
Reader Rating: 5 out of 5
Hi Shane
 
Can the neon tubes handle 110/240 volts? They may only be ment for 12volt applications - maybe you blown the tubes, and thats why they are not working?
 
Kind regards
 
Antonio

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» left by James Hadley from Australia (65 days 18 hours ago.)
Reader Rating: 4 out of 5
Hi so can i tapp into my parking lights but still have it as an accesory with a switch or will i have to go somehwere else, because i want some standard truck LED, like called the hulla bulla lights, on the front bar. under the number plate.

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» left by anonymous from anonymous (65 days 5 hours ago.)
Reader Rating: 4 out of 5
hey i want to know how to hook my neon ending wires to a cut off 12v car charger so that everytime i plug it in the neon will come on,I have a switch and all and i made that work, but i want to run the neon off of the car charger. How can i do this? Also when i first connected my wires to the battery it worked but about two days later i seen smoke coming from my hood,when i checked it out the + wire was fried, why is that and what is the solution to my answer? PLEASE HELP ME!!!!

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» left by Antonio (64 days 2 hours ago.)
Reader Rating: 5 out of 5
To James...
 
Yes, you can tap into the parker lights and still have it on a switch as an accessory.
 
For the other persons question...
 
you can simply connect the neon wires to that of the car charger - it should work.
 
Also, i'm not sure why you fried the wire - could be any number of reasons - first of all, you need fairly thick wire to handle the current, and also a 5amp fuse on the positive wire - so that will blow first and NOT you neons/leds.
 
Good luck ;-)
 
Kind regards
 
Antonio

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» left by James Hadley from Nerang (63 days 18 hours ago.)
Thankyou antonio, i actually went POS to battery POS. then eartch the metal then the LED to my switch, it works, but i have 3 pins on my accessory switch, which works. but the middle pin is a light switch so the light lights up. where do i connect the to?
 
thankyou
 
James

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» left by Antonio (59 days 10 hours ago.)
Reader Rating: 5 out of 5
Hi James
 
It gets connected to earth -negative.
 
Kind regards
 
Antonio

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» left by sam (53 days 5 hours ago.)
Reader Rating: 5 out of 5
hey antonio,
 
I have been reading up on how to install led interior lights into the footwall, and came across relays. Would you preferr using relays or just hooking up the led to the switch only? Is there any down side to either?
 
 

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» left by Kevin from Auckland, New Zealand (47 days 8 hours ago.)
Reader Rating: 5 out of 5
Hiya Antonio;
 
I wanta attach a pair of 12V blue led lights into the lower front bumper, and was tinking of connecting the positive wire of the leds to either the sidelite or headlight wire with t-tap connectors. Question is if 12 volts goes to both the light and led light will it be 6 volts to each resulting in dim lights for both?

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» left by Antonio (47 days 1 hour ago.)
Reader Rating: 5 out of 5
Hi There...
 
To Sam... just hooking up the led to the switch only is fine - no need to complicate things with relays - no downside - just easier ;-)
 
To Kevin...You will still get 12volts to all lights, with only a very minor drop in the brightness - you will hardly notice this drop.
 
Good luck and merry Christmas to all ;-)
 
Kind regards
 
Antonio

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» left by Kevin from Auckland, NZ (44 days 20 hours ago.)
Hiya Antonio;
 
i want light up both the driver and passenger foot well with a pair of pink leds each (total 4), and since i'm not the techno type i was wondering if i can hook them up to the cigarette lighter via a old cell fone charger. I went to stripped this and notice 2 wires, i assume one is for +ve and other for -ve, is it possible to hook up led lights to these wires?

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» left by Antonio (41 days 10 hours ago.)
Reader Rating: 5 out of 5
Hi Kevin
 
Yes - all you need to do is connect all the positive wires from the leds to the positive wire on the cig lighter - and then all the negative wires go to the negative side of the cig lighter - hope this helps.
 
Merry Xmas to all....
 
Kind regards
 
Antonio

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» left by Girly from Canada (34 days 12 hours ago.)
Reader Rating: 4.5 out of 5
Hey I want to place a neon light at the top of my rear window, where should i hook up the wires? I was told that I need to connect them to my rear brake lights but how do i do that? Thanks
 
Girly

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» left by Antonio (30 days 6 hours ago.)
Reader Rating: 5 out of 5
Hi Girly
 
You only need to connect to the brake light wires if you want the neon tube to come on when the brake lights do...
 
The brake light wires are found in the trunk - you will need to track down the power wires for the brake lights, and then connect your power neon wire to this brake light wire.
 
Alternatively, if you don't want the neons to come on with the brake lights, you can connect the neon tube directly to the car battery.
 
Hope this help - and have a great new year ;-)
 
Antonio

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