Did you already have the car alarm when your system was stolen or did you get that after?
Why go thru all of this?
What do you plan on doing when you hear your alarm go off in the middle of the night?
Wouldn't it be cheaper to just bolt down/weld the **** out of your carpc to make it virtually impossible for them to remove from the vehicle without heavy tools?
Wouldn't a better option be to not spend/put more money into the car just so it can get jacked again?
Better yet, is there somewhere else you can park your car that is more secure?
I think your best bet is to not tell ANYONE of your carpc install. I told a bunch of my friends about mine years ago when i worked at a Sears. I drove a crappy car that no one would suspect at the time, and WOW my **** was jacked.
No one knew about it but my friends, my car was the only one broken into, and it was obvious that someone was tipped off....
I think it would be easier/cheaper to buy one of those car alarms that pages you when there's a problem and buy a hand gun to go with it.
If you live in that bad of an area, you may just want to consider a different alternative. Perhaps a removable laptop that you can just pop out of the car and bring in at night
Most people can tell you have a nice system even when you're hiding it with a fake faceplate. All they have to do is see you driving down the street at night. Your screen shines bright and can be seen at night thru the tinted windows. They follow you to your home, cha ching.
What happens if/when they steal your car?
Have you thought about your alarm scanner attracting more attention? Some car burglars are more attracted to the cars with scanners. I'm guessing they think "Hmmm, now why what is inside this Hyundai that makes them want to keep me out?"
As already pointed out, I think they'll just break your windows, have trouble getting your stuff and leave. You'll still be inconvenienced by the broken windows which probably isn't covered by the deductible. Not to mention having to get the new window re-tinted
Now don't get me wrong, I always root for projects like this, but I still have yet to see anyone actually follow thru with anything like this. If you can carry out what you say, I think you will have a formidable defense for sure. I'm sure you've already checked out the other security threads with similar ideas. I think the strobes and possibly some sort of smoke inside would be sweet. Good luck and keep us posted!