where to hide alarm cpu?

Solder the wires back together for a headache free patch job. As for the two brown connectors, disconnect one and try to start the car. If the car still starts with one pulled out, then unplug the other one and plug the one that you took out . If the car still starts, unplug the two brown connectors and test the starter. Before you cut anything else, test with a DMM or a light tester the BLACK/ WHITE wire for this:

• target wire should have 12 volts ONLY in the CRANK position and no power in the ON or ACCESSORY positions.

For rpm monitoring, i read on the diagram that you connect the wire to the tach wire, and also to the (-) ignition coil, which wire is the ignition coil ?  Heres a link to the diagram, its on page 3 http://www.clifford.com/guides/igs/intelliguard8000_install.pdf .  Whats a tip on how to connect one wire to two?  And just wondering, have you ever connected all the wires to an alarm and upon testing it out for the first time, you find out it doesn work?  Thats what im scared of b/c there are so many wires and it would be a pain if that happens.

in addition, for the prox sensor, it says it has to be mounted on to a metal surface, does that metal surface have to connect to the car frame?  Or, can i just take a small metal sheet and mount it anywhere.

You want to attach the BLACK/ GRAY wire to the tach wire on the car.The ignition coil is where you find the TACH wire on some vehicles. Look on my post where I have listed all the wires and their locations and the tach's location is descibed there. Don't worry about the alarm not working on the first try, that's where trial and error comes into play and it will take some time but you will learn alot in the process.

Mounting the prox sensor on a metal surface is mentioned only because they want the surface to be secure and not a peice of flimxy plastic. The tach wire is a BLUE wire NOT in the brown harness under the dash. You can't miss the 2 wire plug by the firewall on the driver side.

There should be blank  firewall plugs near the battery ( you will have to take the battery out ) or look for other blank black discs on the firwall. Take them out and drill a small hole into them and pass your wires through these discs. 

last questions and im probably done.  Is it better if i connected all of the power to the constant 12 volt wire inside the car or directly to the battery?  If i do it to the battery, wont it be easy for thieves just to snip the alarm wire?  I think it would be kinda hard to open up the (+) battery wire loom and run in my alarm wire.  I would rather connect it to the inside constant 12 volt wire. 

For the drilling part, do i just drill the plug or will i have to drill through the metal wall too?

Also, installing my alarm i think i've noticed how easy it is to bypass my starter kill.  Wouldn't all they have to do is cut the alarm wires and reconnect the ignition wires?  I'm trying to disguise and hide my alarm wires as good as possible but i still think its too easy since my alarm wires run into the ignition wires in a T shape.  I've avoided connecting the wires close to the harness and ignition switch, is that a good idea?

And last, wut kinda battery should i get for backup on my alarm and siren?

oh yea, i think ive asked this question before but where exactly should i mount my siren?  Please give me a good location. Thanks

If a thief is to snip the battery cable, it doesn't really matter if you have the alarm hooked up to the inside of the car or the battery cause the power will be lost either way unless you have a back up battery. Just make sure that you use split tube looming to hide all visible colored wires to get that factory look.

You will only need to drill into the plug. The plug will be a rubber disc or plastic and if there are no spare plugs then you will have to drill a hole or go through the steering wheel boot. The wires for the ignition are usually behind and up in the dash area. A thief will not bother trying to find these wires rather they would try to disable the siren or cut the main battery instead ( I would ). It's still a good idea to blend the alarm wires into the factory wires incase someone had the time to look under the dash and see what wires are for the alarm and which are not.

The back up battery should be a dry cell and should not be very large because you want to be able to hide it in a small space , yet still be able to access it. Try to mount the siren in a spot where it will be hard for a thief to get a hold of it and be able to pull it out. Have the siren mounted with the opening facing down so it won't act as a bird bath if you end up driving through rain.

The reason i was asking that is because he could snip just the alarm wire from the battery, and still have power to run the car.  If he cut the battery wire wouldnt he be stuck with a powerless car?  So is it recommended that i connect it directly to the battery? Oh yea, and wut is a recommended place to ground all my wires?