The Perodua Alza P&P Alarm is an aftermarket security system that can be installed in the car to provide additional protection against theft and unauthorized access. The term "P&P" stands for "Plug and Play," which means that the system can be easily installed by simply plugging it into the car's existing wiring system without the need for any modifications.

The P&P Alarm typically includes a central control module, a siren or horn, and various sensors such as door and window sensors, motion sensors, and shock sensors. When the system is activated, it will monitor the car for any signs of intrusion or tampering, and will trigger an alarm and/or flash the car's lights to alert the driver and scare off potential thieves.