1999 jeep grand cherokee

i have a impulse res-r w/ remote start i am trying to install my self i have experience installing stereos but no alarms. i looked at the wiring sheet on this site but was wondering if i have keyles entry that came with the jeep couldn't i just unplug some of the wires on that and plug them in to the new alarm rather than tearing apart the car to get to them and if so how

If you are refering to unplugging a factory keyless and plugging those plugs into you unit it "Ain't goin to happen". If it were that easy most of us installers would be out of a job. Your vehicle isn't the easiest to do and it will require atleast one or more modules to interface the factory alarm/keyless and the factory immobilizer. Do some research first before attempting this vehicle. It's not a good vehicle on which to try your first install on.sparky