Right, if your car doesn't have a factory alarm, you wouldn't need to ground the light-green wire in the first place. The primary function of the light-green wire is to unlock all doors when the driver turns his key in the outside lock, but on cars with a Security system, that action must also deactivate the system, since of course someone is about to open a door.

make terms easyier the 850 by-passes the factory security system i woundnt say i disarms it
thats so you dont confuse them

Ok guys sorry about this but im gunna have to put the alarm thing on hold for a bit im having brake issues

Ok gentleman here'* the deal. I've completed the install of the 850. First I did an experiment and called about 50 people (that wasn't any help). I didn't connect the factory disarm wire for the simple fact that the factory alarm will never be armed. The factory alarm only arms if you do one of the following;
1. Press the lock button on the remote
2. Lock the door with the key
3. Lock the doors by pressing the power lock switch(while the door is open)
Once you get out of the car and arm your aftermarket alarm, the doors will lock but not arm the factory alarm. The factory alarm is fooled into thinking that you are in the car pressing the powerlock switch therefore not arming the alarm. And for the record the Autopage 850 does lock the doors before it starts the car. I've installed this alarm on my 95 Lincoln Towncar and 90 Astro van. It'* the best alarm on the market for the price.
So for future reference, there is no need to connect the factory disarm wire when the factory alarm will never be armed.

Congrats on the install!

I think the question in previous posts was if it locked after the vehicle started. This would be important for those who need or want to connect the factory disarm wire.

It'* been a couple of years since I have done the starters full time so I am still kinda curious: could you arm your factory alarm as you have indicated, wait 60 seconds or more and activate the remote starter for me? For the like of me, I do not remember if factory disarm was even required or not.

This must be the case as there is a growing number of members that have already installed one or are looking to purchase one soon.

I thought that it would be a problem if the factory disarm wire was to be connected. Let'* keep in mind that the 850 mimicks your moves on starting your car. Now if you disarm the factory alarm by any means, the interior lights will come on causing the aftermarket alarm to think that one of the doors opened and go off. So to eliminate that problem, I didn't connect the disarm wire. To my knowledge and experience, the factory alarm only goes off when one of the doors, trunk, or hood is opened. It does not go off when you start the vehicle. I sat in the car and armed the factory alarm with the remote and it started with no problem. But when I opened the door to get out, the alarm went off. Now keep in mind that the factory alarm does not have anything to do with the ignition. That'* why the VATS deal is in there. If a thief was to get in your car, he wouldn't be able to start it without the key that has the resistor pellet in it. Most newer cars have a transponder type deal that stops the starting of the vehicle without an authorized key.
But to sum everything up, there is no need to connect the factory disarm wire because the factory alarm will never get armed. The arm and disarm wires can be connected but what'* the use? The Autopage RS-850 is not just a remote start, it'* an alarm. Factory alarm has no use anymore.

Here are the actions of the Autopage RS-750 & 850 for those who dont have one or plan to get one.
1. You press the start button on the remote and it emits a tone letting you know the signal has been received.
2. Your park lights flash once to let you know that the car is about to start.
3.The doors lock to prevent unautorized entry while the car is starting.
4. The car starts.
5.Your park lights come on (flash is programmed) and stay on for the duration of the cycle.
6. You get a comfirmation tone from the remote telling you that the car is running.

What year is your car? I can confirm that on the '93, the factory alarm _will_ go off if the car is started while the alarm is set. It'* easy to test: arm the system, reach in through an open window with your key, and start the car. On the '93, the alarm will trigger immediately.

I should note here that after you arm the system, you should wait for the Security light to go out (about 20 seconds) before trying to start the car through the open window.

Sorry, but I don't agree. If the Autopage wants to cover and protect the same areas of the car, fine, but it can do so without interfering with the factory system, plus if it'* defeated or malfunctions, the factory system will still be there. Moreover, since Autopage themselves provide the necessary wires to interconnect with the factory system, you should use them. Even Autopage, in other words, is not recommending that you try to defeat the factory system.

And of course, there'* always going to be some odd combination of circumstances that ends up setting the factory alarm, even if you yourself don't plan to: e.g. Aunt Martha borrows your keys to go out and retrieve her coat from your car, and since she'* terrified of all electronic gadgets, she uses your door key to unlock the car and lock it afterwards... which sets the factory alarm...

if you use a resister to by-pass the key the car will start right?

A resistor must be used for the VATS bypass but there is no resistor needed for the factory alarm disarm. That just requires a negative pulse.