Or even "If I lose contact with the Empeg and wasn't EXPECTING to lose contact with the empeg, then I'll alert in specified manner... so even if the alarm is circumvented, if they (a) remove the stereo, or (b) drive away with the car, then you get notified.

You could also do "If the empeg powers up without me expecting it" (e.g., the criminals started the car) so you can get a head start catching them before they're "out of range".

D