Alarm For a '71 Panel Van?

[LuAn]

So many doors, and I guess high sides to the vehicle will make it prone to rocking in the wind? Maybe ultrasonics are the way to go? Or a big dog? Seriously though, any thoughts?

 

[easy]

Just put a switch connected to a power drain on each door, so when its opened, WOO WOO!, i have this on mine and it doesnt get in the way of any thing.

Have tried various alarms, but had the usual ones just go off all the time.

Hope this helps 8)