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Old 10-18-2002, 11:42 AM   #1
CaptainMorgan
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Default Swap stereo bulbs with LED

Does anyone know the voltage on the stock stereo ilumination bulbs? I want to swap in some blue LED's there but I need to know the voltage before I solder them in. Also, how do you get access to the gauges to remove the green on the back? I'd like to remove that and change the odo color too. I did a search but couldnt find any instructions on how to. Thanks!
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Old 10-18-2002, 05:39 PM   #2
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Default Re: Swap stereo bulbs with LED

Quote:
Originally posted by CaptainMorgan
Does anyone know the voltage on the stock stereo ilumination bulbs? I want to swap in some blue LED's there but I need to know the voltage before I solder them in.
If you're soldering you probably have a multimeter, right?
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Old 10-18-2002, 06:51 PM   #3
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You'll have to remove the HU completely and open it up to see if there are replaceable bulbs that can be changed for different bulbs or LEDs. If it is possible you will need to know not only the voltage to the bulbs but the polarity as well since LEDs are diodes and thus polarity-sensitive. Once you know the voltage for the existing bulbs, you will need to calculate the appropriate series resistor to use with each LED.
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Old 10-19-2002, 02:07 AM   #4
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What mulder said. If you want some LED bulbs that plug right in to the instrument cluster (no soldering) then look for a thread called Dash Lighting in this forum. I'll go find it right now and bump it to the top for you. Not sure what the stereo uses for bulbs, though, so I don't know if thes will work on that as well.

Khail
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Old 10-23-2002, 12:39 PM   #5
Malico
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I am going to see what I can do about finding out the voltage on the stock bulbs in the radio... I will post it here when I find out, but if anyone else knows, would be appreciated.
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Old 10-23-2002, 03:27 PM   #6
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Thanks for your help, but I figured it out. The voltage on each of the lights is about 9.5v. Ireplaced all the incandescent lamps in the stereo with 3.7v 2600mcd blue LED's from radio shack and a 330ohm resistor. The HArdest were the ones lighting up the LCD. I ended up cutting the trace on the back and running the resistor over the gap. and since I dont have any SMT resistors, its a mess. But it works. Really well!
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Old 10-23-2002, 03:58 PM   #7
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Let's see pics!
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Old 10-23-2002, 11:16 PM   #8
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Here's the stereo. Sorry its blurry. It's hard to hold the camera still while I have the apature open for 1 second.



Last edited by CaptainMorgan; 10-23-2002 at 11:27 PM.
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Old 10-24-2002, 12:12 AM   #9
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OMG that is so awsome you have to do that for me I have no electronics knowledge at all but NEED to have that done!!!!!
SWWEEEEEETTTT!!!!!!!!! CHRIS.......
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Old 10-24-2002, 07:41 AM   #10
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Where did you get the LEDS you used?

I got my Gauges looking like that, next step is the stereo!
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Old 10-24-2002, 09:15 AM   #11
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Go down to Radio Shack. By yourself like 11 Blue LED's 276-316. Also get 2 packs of 330 ohm resistors 271-1315. Get a soldering pencil and file it to a sharp point. Get some fine gauge solder 64-013 and some solder braid 64-2090. It took me maybe an hour and a half to do the whole stereo with the new bulbs. It's real easy. The board is laid out nice to work on. The only problem is finding the polarity on the board for the LED's. Maybe I might post some instructions to do it, though I dont have any "before pics" I think you could figure it out. Its really bright. It's brighter than stock I think. In case you're wondering the blue is not as deep a color as it is on VW's, this is more of an "electric" blue. If you've ever seen a telsa coil discharge, its that color of blue. If anyone in Iowa wants me to do there's for them like this, PM me.
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Old 10-24-2002, 11:52 AM   #12
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That is just standard blue LEDS? wow...
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Old 10-24-2002, 09:54 PM   #13
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I di that to my nokia cell phone except i used surface mount led's. The blue leds ARE bright, so you'll probably have to wear sunglasses....
Btw they make the LED's in Purple, White, Orange, Ulra Green, Ultra Red, Yellow, etc.
Blue, White, and Green will probably look the best because the transparrent layer on the buttons is green-ish.
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Old 10-25-2002, 02:32 AM   #14
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That looks incredible! Now you just have to change all the other interior lights to match

Can you take some pics with the camera braced or resting on the front seats? It should make it easy to get a fairly sharp reduced picture even at low shutter speeds.
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Old 10-25-2002, 10:12 AM   #15
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I'm gonna try and get some better pics as soon as I get the new LED's for the cluster. I'll have to set the camera on something and set the delay. The only problem is that the blue light bleeds in the pictures, so its gonna be a bit fuzzy no matter what.
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Old 10-28-2002, 08:01 AM   #16
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I did the Radio yesterday and it came out AWESOME!!!

Captain I plan to send you an email on this but I found a easy way to figure out the polarity and I plan to work on a writeup on this as well.

You can find the polarity with the board out of the headunit.

Get a Multimeter, stick it into the Ohm Meter Selection and probe across the current bulb leads on the board. Technically if you probe ground to ground there should be little to no resistance since ground is a straight shot, I was getting .6 ohms.

Example:

There were 7 bulbs on the board, find two of them...

Stick your probes one lead one on bulb one and on lead one of bulb two. You should have four combinations max for two bulbs but go through each combo until you get a resistance reading of 1 ohm or less. These are your Negitive leads.

This is how I did mine and I got the polarity correct on every bulb without having to probe it under power.

Thanks again Captain, I will be on contact with you via email
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Old 10-28-2002, 10:56 AM   #17
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Did you use the same LEDs to do the environmental controls? Those are just white incandescent bulbs with green condoms. I worry about vewing angle.

-IggDawg
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Old 10-28-2002, 01:57 PM   #18
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This is cool. I would like to do this mod someday.
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Old 10-28-2002, 02:12 PM   #19
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Yes, I replaced the bulbs in the HVAC unit with LED's. There it is a bit dimmer because there is nothing to redirect the light like in the stereo, but it is still very visible.

We're working on getting some instructions togeterh on how to do this yourself. Hopefully that will be up on ScoobyMods soon.
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Old 10-28-2002, 04:26 PM   #20
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Thats awesome! First time I've seen it look that good. Now, can you do the clock, dash lights, and odometer? This is definately on the future mods list.
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Old 10-29-2002, 07:24 AM   #21
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I have totaly completed all my interior lights with this...

I have been working with Captain Morgan on it and I plan to make a write up in the next couple of weeks. Waiting to get my hands on a digital camera and also waiting on another interior mod. Going to rip my dash apart and take detailed pics all at the same time.

This is what I coverted below :

Fog & Cruise Light - Done with LEDs - Very easy and came out nice and clean.

HVAC Controls - Done with LEDs, pain in the ass. I am waiting on some bulbs to see if they can be done eaiser. Will put both ways in write up.

Stock Radio - Done with LEDs - Not too hard to do as long as you have decent electronics and soildering knowledge. I found a easy way to figure polarity on the board with it out of the HU. THis part does require some cutting of circut traces on the faceplate board. May want a friend to do it for you if you feel uncomfortable doing so.

Gauges & Odo - LED Bulb sockets - Was able to convert the stock Gauges to the same blue color. The Odometer matches the color of the LCD you see on the radio in the pic above.

The whole setup looks sweet, takes some work and expect to spend about $100-120 for all the bulbs are misc parts needed.

Captain - For the HVAC I completed last night, I put some foil strips inside the HVAC and it helped to brighten it up.

Expect to have the write-up by the end of November, sorry for the delay but I will be leaving town next week for 10 days and unable to do anything but when I return I will make a very detailed and full write up with pics.

If you want me to email you when the writeup is complete drop me an email at malico_LC@hotmail.com and I will email it to you when it is complete. Put in the subject line "LED Mod" that way I know what it is about and can separate it from the porn spam
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Old 10-29-2002, 09:44 AM   #22
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Do the lights dim with the dimmer switch thing on the headlight stalk?


Mike
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Old 10-29-2002, 10:28 AM   #23
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if I just want to go with white to match the Defi BF gauges is it easier to just go in there and replace the icandesants with white ones? or will they match better with white leds?
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Old 10-29-2002, 10:38 AM   #24
Malico
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Yes all the lights dim with the dimmer control

As for white, all of the bulbs are color by bulb condoms. So removing the bulb condoms would give you a whiteish light except for on the LCD's where you would still get a hint of green.
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Old 10-29-2002, 11:27 AM   #25
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malico: I just got my LED's for the dash in last night. They are a bit dimmer than I had hoped and dont diffuse well enough. I got them from Autodynamic.com http://209.87.151.155/detail.asp?PRO...94-LED-Blue-4. What kind did you get? I'm kind of upset about the hot spots in certain areas.

Yeah the HVAC controls were a bitch. I had to file my solder iron down to a sharp point to get into those little caps to attach the LED's.

ScreaminFast: Actually if you remove the bulb condoms in the stereo it come out a pinkish yellow. The incandescents glow like a normal house light on a dimmer turned all the way down. You can do the mod with white LED's and it will probably give you the pure white you're looking for.
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