I dont have the stock alarm anymore but when i did i replaced the LED that came with the stock alarm with a white one. IS there any way off wiring the stock secuirty led to my aftermarket alarm? I only wonna use it cause its in that nice bezel and all.

 

.. come on.. 466 posts and you ask this question... tisk tisk tisk...

hehe.. you sure can use the original "SECURITY" indicator... its two wires in the back... ground and ... live... (common colors are WHITE or BLACK for ground. and red for positive.. but the red can be alot of other colors too) your aftermarket alarm should have the wire that comes from the control unit .. snip snip oin them together... your set to go...

BUT i would think you would want people to know you have an aftermarket alarm... to turn away anybody that wants to steal the MAX as it is a very stolen car on the east coast....

you can get creative... and do other things.. i will post pics...

 

yea the new thing down here is putting blue LEDs on your rear view mirror for the alarm

 

see i know that lol only thing is there are no wires behind the lil secuirty thing just lil pronges? Dunno what happened to the wires or what i did with it?? But yea your right i got one off those lil led scanners where i even got te comment is that an alarm that talks lol.... But thanks ill take a look at it later on today

 

i did that BACK BACK BACK in 2003... with a red led in the location that a BMW would have on its rear view on my 1st i30... heh..

and wirelessdude04

the plugs probably just fell behind the cluster area. remove the bezel and look for them.. you need the plug or adapter as others may call it. OR go to junk yard.. and get it.. if they charge more than 5$ then tell them they suck...

another idea.. like alot of newer cars. by the vent for the defogger rite by the widnshield. i used a clear led that lights up RED. and becuase its clear/ you cant really notice it until your up close. its pretty bright led so its great when im walking away from the car i can see it blinking.. but its not SUPER DUPER BRIGHT to a point where a plane would try to land on my car.

 

^that mod is easy easy easy and cheap security. Did it when we installed an alpine HU in my friend's car (with NO security system) and it works perfectly. Helps that it looks like the Grand Prix security system and his car is a Pontiac as well.

 

yeah when i had my alarm installed the guy connected my factory securoty led to the aftermarket alarm, well i installed my own blue led by the driver pillar, was like 5 minutes.

just splice the wires and test before you actually mount. get a diagram of ur alarm computer and see which pin exits are for the led, its as easy as reading a newspaper...

PS if u wanna get fancy with it remove the pillar and run the weire all the way in and drill a tiny whole thu the pillar, insert led and run the wire down to the alarm thru the back of the dash where the fuse box sits, i would not want to remove the roof lining to get the led over the mirror just too much work hehehehe

 

i know how to wire it... Just that there are no wires behind the factory securty LED just lil prongs??

 

so that means someone cut the wire, find the proper connection at your security system and run a fresh wire.

 

im gonna wire it up to the led's i already have for the aftermarket alarm in there... I just gotta find the postive and negative prongs on the factory led. Anyone know where i could find a blueprint or have one?

 

fsm?


\char

 

fsm?????? 1234

 

BTW, the factory LED won't work with an aftermarket alarm. The factory LED has a resistor built in to the base. Aftermarket alarms have the resistor in the brain. You'll need to bypass the resistor in the factory LED to get the correct brightness when driven by a aftermarket alarm.

 

im def. lost now guys hearing differnet things it will work and it wont who can confirm?

 

It will work. Get the FSM for your car, go to the EL section and look up the security schematic. It will have a pic of the LED connector, which pin is 1 and 2, + and -. Then, snap your SECURITY LED apart, you'll see the clear LED inside and a resistor next to it. Solder a piece of wire across the resistor (to take the resistor "out" of the circuit by shorting it) Then reassemble. Take your aftermarket LED wire, hook black to the - of the factory LED and hook whichever color (red, blue, violet, w/e your alarm uses as +) to the + pin of the factory LED. Done.

 

gonna post a pic and let me know if its right

 

my oem security led worked with my aftermarket alarm, the same alarm now has another aftermarket led that also works, so im not sure about your theory

 

quick lil pic sorry digital camera is somewhere... I have leds soldered then a lil peice off wire connecting both sides together

 

Ok, I have to interject. Made in China, I was always under the impression that resistors maintain a certain flow through a circuit by resisting variable incoming signals. Having 2 LED resistors would not matter, as the first one will hold back the current to a certain point, and therefor, the second one would basically be doing nothing(yet still work). Where am I flawed?

 

Resistors come in different sizes and values (in ohms) which reduce voltage/ current through a circuit based on their ohm value- they don't maintain a desired voltage or current output, so if the voltage/ current input is variable, the output will be variable. So if you use 2 resistors in series rated at 4 ohms, you basically have a total resistance of 8 ohms.

 

Like elemax wrote, two resistors of the same value in series will give you double the resistance of one, thus significantly reducing the current flow. What you might be thinking of here is capacitors that can serve to smooth sudden spikes in the flow.

 

a better way of looking at it is : in series resistor values add up. saying they double may confuse him.

 

Oh crap, Im sorry. I guess I was thinking of a v regulator or something....

I knew caps are used for steadying flow, we used them a LOT in rc cars to reduce radio interference between motors and the receiver, and for smoothing out the power across motor terminals.

 

you dont smooth out power, you smooth out voltage peaks

 

ok back to the topic how do i wire it up lol?

 

Yes, the LED may light depending on it's characteristics with extra resistors. I guarantee that it is not as bright as it should be if you just use the correct resistance. R = (VS - VL) / I
R= resitor value in ohms
VS= supply voltage
VL= LED voltage drop (between 1.x to 3.x volts)
I= Typical LED current of 20 ma

Increasing resistance reduces current flow. The LED will light up to a certain point where there is not enough forward voltage. But most LEDs attain rated light output at 20ma, so why add more resistors and reduce the forward current?

Alarm brains typically are set up to supply 20-30ma of current on the LED output, so generally you don't need a drop resistor externally. So why keep the stock one in the SECURITY indicator?

I am not going to tell you where you are flawed, but I hope you understand now.

I should not have stated "it won't work" what I meant was it is best to....(see above)