i just install a 2 way alarm.. price, dirt dirt cheap..
function, = whole car shock sensor,
trunk release,
turbo timer,
and many function more...
in total it got 10 function..
and the most important.. cost only 3++ ...
therefor i really recommend it..
but ofcoz not branded like those corbra or e.t.c la..
up to u to judge , just sharing what it have on market
cheers