Hey Stv, with that proximity system does it get set off pretty easy??? Like if you had the top off and a leaf fell in from a tree would it go off??? I'm just curious because I thought about getting an alarm like that and I just wasn't sure.
I have the Autopage in both Jeeps. It uses a "sensor" that mounts inside the cab area, good places are up behind the dash, under the center console and so on. It's a microwave sensing unit that is adjustable to the vehicle. Once it's in the installer will adjust it to the specific vehicle. Mine is set so that if the top and doors are off a person could walk by and the alarm would not sound, but, if they stopped and leaned in for a look, or even stood within two inches of the body, a warning would sound. If they moved closer, or just walked up and reached inside, the alarm sounds which cuts of the ignition. It also has switches on all three doors and the hood.
It takes something significant to set it off, I've tossed small items in and it "chirped" but didn't go off, throw your jacket in there and it goes to town. But more than once I've forgot it was on and walked up and off it goes. It is also a vibration sensor so if someone came and leaned on it or was messing around near the bumpers it would also sound.
A good system, you can find them >$200 installed on sale in San Diego, comes with two remotes. Had mine put in at Car Audio Heaven on Rosecrans near Sports Arena Dr.