alarm recommendation

We don't recommend getting motion perimeter detection. Most are done with ultrasonic sensors and are affected by temperatures of the air around the car and may trigger false alarms. Best to stick with window, door, shock and trunk/hood sensors.

CompuStars = REALLY GOOD!!! The only tiny tiny little thing we say against it is that you have to replace the battery in the remote every few months.

Vipers are ok too, but better to get Crime Guard. They are made by the same manufacturer (along with about 80% of alarms out there) and distributed under different distributers. You'll pay a lot less and get a lot more features. The warranty on CGs usually tend to be better too. (depending on model)

They will now plug into each other. iDatalink is partially owned by the same person that owns Compustar. They are designed to work with each other and now with the Pro series that uses the 232 data port, there's no more security issues with the ground when running wire. If you use the databus ( 232 connection ) then there's no security issues because the databus controls the ground when running trigger via the internal circuitry.