Pardon my ignorance but when you say that a car is equipped with an
anti-theft device, does that only mean that the radio/HU cannot be
used if stolen? Or does it include the chip in the car-key that makes
it impossible to start the car with a fake key?

Or more to the point, how do I verify if my 2000 Accord LX comes with
an anti-theft device. I am pretty sure it doesn't say so anywhere in
the car or on the radio but since my insurance gives me a discount for
an anti-theft system, I need to get to the bottom of this.

Also how much would it cost and what are the advatages of having one
(besides the insurance discount, that is)?

Thanks in advance,
bc