Car alarm install - what to look for?

[davester]

I like the ones that yell "Help me, Help me!" or "Burglar, Burglar!". They provide amusement to the locals as the thieves drive off unimpeded (since nobody pays any attention to car alarms these days). Personally, I think car alarms are pretty worthless unless they can effectively disable the car. The other alternative is to check out Lojack.