2002 Type R needs a UPGRADE ALARM due to the fact it already comes with a keyless entry system. You retain your factory remote with upgrade alarms, Two great companies for upgrades I know of are Viper and Cyclops.

Viper 775X (i think - cbf double checking)
Cyclops S485

Both companies have technical support and Cyclops are based in Perth.

With these alarms you can add whatever you want as in Ultrasonics, Microwave Sensors, Tilt Sensor, Shock Sensor, Glass break sensor, etc and most come in both single stage and dual stage detection.

Why both having 2 remotes. When these 2 top brand alarm companies have found a way to retain your factory remote system.

More info -
www.dynamco.com.au (Cyclops)
www.directed.com (Viper)