Need some opinions please on what types you guys have and brands you trust.
anything that makes noise except the $100 ones that false alarm all the time is still only a deterrent. If the module is hidden then any alarm with an immobilisers is good, it just depends on the features you want, A good car thief can disable any brand. The worst thing you can do is put those little stickers showing what brand you have, that gives them a head start as each alarm has similar wiring but not exactly the same. Spend the money on putting in a secondary kill switch in a good spot, some people even have two extras, you can switch them on if you are in a higher risk area or out somewhere. Hook one up to the starter, one to the coil or whatever else will disable the car.
A alarm makes noise and make the lights flash
A immobiliser will stop things such as a fuel pump from working
Contact your insurance company and see what discounts they give, you might be required to have a 3 point immobiliser with black wiring. They might also be able to suggest brands and models that they approve.
try the ones with the remote LCD's. they operate on kinda like a celluar band and the remote will beep as well when ur car alarm is going off. even shows on the LCD if a door has been opened or just something has bumped it setting the alarm off.