Yes , the VIPER (HORNET) two way is the best with all sorts of possible set ups.This is the starter and alarm combo. For a little more I also had my guy install an interior alarm ,(for convertibles).
This way , if someone opens their door to wide or steps too close to the car they get and audible nudge to move away. Of course you have to turn this off in some cases or try to park in a secluded spot. (If you can see the console it will go off)
I think my whole deal was about 350 or 400, but not sure. The system was also removed from my totaled crossfire and moved into the new one.
It is a must that they know MB wiring.
RP