I have the VIPER 5701 on my truck now after a couple break-ins/vandalism. I added a proximity sensor, high frequency sensor, and vibration sensor. Arming the truck is controlled only by my key fob. If the door is unlocked with a key or anything else, the alarm goes off, and it sets off an alarm on my key fob. If someone gets too close, it sets off a warn away alarm (chirps). If the glass is broken or someone uses a sawsall on my catalitic converter (which was stolen before I got the alarm) the high frequency sensor is triggered and the alarm goes off. If someone bumps it, the alarm goes off. Its quite secure.With the remote start, it was about 700 installed at a local car audio shop.