Ever seen gone in 60 seconds? The alarm isnt hard to bypass if you have the right tools. Whoever took the cars knows what they are doing. How they stole it isnt important anyway, they stole the damn things, its time to find out who. Its Hondas that are getting nicked, why dont some of you honda guys do some tests with your cars. Also were those cars in gear when they were parked? If not all it takes is a pair of dikes and pushing it down the street, break in and hotwire it. There are many possibilities, need more info on the whole thing to figure it out. The key theory isnt a bad idea either, THere are some shady dealerships around here, you never know.