Rich Grise wrote:

Call it The Rapper Zapper.

How about one of these:
http://www.betterhomesecurity.com/~S...php?ref=stg800
discharged to the vehicle's antenna?

Zappers are great solid state destroyers (transistors make better
fuses than fuses) But you have to get close enough to zap the circuit
boards. (Work great on Computer mother boards!)

CD players don't have antennas. (antennae?)

Yes, although every wire in the player is a potential antenna
especially for high frequency (radar) EMP.

Electronics have antennas. Bugs have antennae!

Benj