get a good anti hijack alarm , im getting a blackjax one.......

heres how it works......

After the vehicle is at a safe distance BlackJax will activate the siren and brake lights to draw attention to the vehicle. when BlackJax sees the vehicle slow down or stop, the UltraSecure Immobiliser circuit shuts off the engine, stranding the thief and vehicle. At this time your transmitter will not operate the system, only you can turn off the blackJax by entering your secret PIN through the Plainview 2 Valet switch.