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Old 08-09-2013, 07:16 PM   #1
Michaelc1220
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Adding aditional interior LEDs

I want to add additional LEDs to the rear seats, and possibly a few other locations inside the car. Does anyone know if there is a spot in the fuse box that gets power when the ignition is turned on? I don't really want to tap into the existing footwell lights because they shut off when you close the doors. If there's a way to link them to the parking lights from the fuse box that would be even more beneficial, but I don't want to get into something more than i can handle. Any information would help! Thanks -Mike


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Old 08-09-2013, 08:24 PM   #2
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Quote:
Originally Posted by Michaelc1220 View Post
I don't really want to tap into the existing footwell lights because they shut off when you close the doors.
I'm assuming you don't have factory ambient lighting?
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Old 08-09-2013, 08:53 PM   #3
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I'm assuming you don't have factory ambient lighting?
I have factory lighting in the footwells, thats it. There is one light on each side which i've already changed to LEDs. I don't have the ones that are in the door panels or anything.
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Old 08-09-2013, 09:10 PM   #4
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Quote:
Originally Posted by Michaelc1220 View Post
I have factory lighting in the footwells, thats it. There is one light on each side which i've already changed to LEDs. I don't have the ones that are in the door panels or anything.
I did this in a escort. Used the Cigarette lighter/power point fuse. Has 12v when acc or ignition is on.

See here:

http://www.focusfanatics.com/forum/showthread.php?t=320587

EDIT: I think the 12v on the focus it hot all the time, unless it goes off after that 30 minute period when your radio still works. You probably can't tap into that. But something like the power windows should work.
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Old 08-09-2013, 10:42 PM   #5
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make sure you do the calculations to figure out the resistor needed or you will burn out the leds fairly quickly. I would just figure out what the resistance is for your factory footwell lights are and wire your new ones in paralell with a resistor to lower the voltage from 12v to the required for the leds you use.
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Old 08-09-2013, 10:44 PM   #6
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Originally Posted by dbenney View Post
make sure you do the calculations to figure out the resistor needed or you will burn out the leds fairly quickly. I would just figure out what the resistance is for your factory footwell lights are and wire your new ones in paralell with a resistor to lower the voltage from 12v to the required for the leds you use.
Or just buy prewired LED's with resistors already wired in.
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Old 08-10-2013, 02:14 AM   #7
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Quote:
Originally Posted by SilverPony2001 View Post
EDIT: I think the 12v on the focus it hot all the time, unless it goes off after that 30 minute period when your radio still works. You probably can't tap into that. But something like the power windows should work.
From my experience The 12v outlets power off at some point after turning off the car, and then regain power when I open the door.
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Old 08-10-2013, 02:28 AM   #8
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I used the windshield wiper fuse when I did mine. only gets power when the car is on, and the wipers are hardly used so not alot of power is really added to the fuse
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Old 08-11-2013, 07:50 PM   #9
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I actually tapped into the pos and neg on my sub amp that is under my passenger seat. As it is, it pulsates to the bass so its pretty awesome actually, but i'll see how I like it.
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Old 08-12-2013, 01:34 PM   #10
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I used the below guide for my footwell LEDs. I used an add-a-fuse to make it nice and easy. They come on as soon as the ignition is on.

http://www.focusfanatics.com/forum/showthread.php?t=297198
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