Wiring underdash LED's to work with overhead courtesy light

July 26th, 2008, 04:35 PM	#1
LilPoni11 Newbie Join Date: Dec 2007 Location: San Antonio, TX Posts: 37	Wiring underdash LED's to work with overhead courtesy light Ok so I'm sure this has been done before; I've searched this forum and a couple other forums but I haven't been able to find the answer I'm looking for, so I figured I'd give it a try. I have some white LED's under my dash that I'm wanting to wire so that when the doors open, they turn on, and when the doors are closed, they shut off. I know it's as simple as wiring the LEDs to the overhead light; I just need a wiring diagram or some information to tell me where and how to do it. Thanks!

July 26th, 2008, 05:40 PM

WLJohnson05

Mod Johnson

2004 Mustang V6

Join Date: Mar 2007

Location: Newport News, VA

Posts: 5,322

Originally Posted by LilPoni11

Ok so I'm sure this has been done before; I've searched this forum and a couple other forums but I haven't been able to find the answer I'm looking for, so I figured I'd give it a try. I have some white LED's under my dash that I'm wanting to wire so that when the doors open, they turn on, and when the doors are closed, they shut off. I know it's as simple as wiring the LEDs to the overhead light; I just need a wiring diagram or some information to tell me where and how to do it.

Thanks!

turbolx has the wiring diagrams
yep all u need is to find the wire that sends the power to the above lights and tap that for urs and it will turn on and off with those

__________________

Originally Posted by Onemanzu

put the shiny thing next to the dudad and get this thingymagigger and connect it to the hoptey dooo and your all good

Originally Posted by TheUNZippee!

And we're done.

Go vote for me for ROTM!

TURBO on 7.2psi
CHECK OUT MY WEBSITE

July 26th, 2008, 06:09 PM	#3
Zatrekaz Regular 2003 Mustang V6 17.00@slow Join Date: Aug 2007 Location: Mississippi Posts: 417	If you cant find a wiring diagram, I would say take the dome light down and inspect the wires going to it. It either has 2, or 3 wires. Ground, Constant 12volt, and Remote 12volt. You will want to tap into the Remote (switch wire) if it has that, if not, then the Constant 12volt power wire. Some trial and error would be my course of action. __________________ 18" Chrome Saleens w/ Nexen Tires O/R H-Pipe w/ Flowmaster 40s Mach1 Grill Delete MSD 8.5mm wires Cold Air Intake 10k HIDs Coming soon! Lowering and new paint !

July 26th, 2008, 06:45 PM	#4
LilPoni11 Newbie Join Date: Dec 2007 Location: San Antonio, TX Posts: 37	thanks for the help guys I'll go out and see what I can do, and let you know how it turns out. if anyone else has tips/opinions, let me know

August 2nd, 2008, 11:47 PM	#5
Squints Enthusiast 1986 Mustang GT Join Date: Dec 2007 Location: Chesapecker,VA Posts: 675	i know i'm about a week late but...... easiest way is going to be getting a 12v source to the + wire for your lights (fused of course). and running the (-) wire to the door switches. you know the little button in the door jam that pushes in when the door shuts. all that thing does it complete a circuit by supplying a ground when the door is open. if you can't find that button/switch thing, you may have to take the light down and see which wire you need to tap in to. or even run a wire up to the light and tie into it there. but make sure you tie the (-) wire from the under-dash lights into the (-) wire that supplies ground to the dome light. or, you'll be blowing LED's and popping fuses. __________________ MILITARY CREW AT3

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