Yes, door, hood, and rear hatch. No motion or glass-break or noise sensors. On the RT/10's, opening the trunk will not set it off.
Yes, it disables the ignition.
I have read that the factory alarm is pretty easy to defeat (there were some quickly closed & deleted threads on .morgue about it two years ago). If you were asking if it's easy to defeat the ignition cutoff *after* the alarm has been tripped, I don't know. Probably, as you'd only have to tear apart the glove box and get to the wires behind the key switch. I guess if you're stealing a Viper, you're willing to do that.
No, you can't tie other sensors or a pager into the factory system.
Yes, it disables the ignition.
I have read that the factory alarm is pretty easy to defeat (there were some quickly closed & deleted threads on .morgue about it two years ago). If you were asking if it's easy to defeat the ignition cutoff *after* the alarm has been tripped, I don't know. Probably, as you'd only have to tear apart the glove box and get to the wires behind the key switch. I guess if you're stealing a Viper, you're willing to do that.
No, you can't tie other sensors or a pager into the factory system.