We went to a home store and bought a small motion sensing alarm. It's small, battery operated (2 AA lasts about a year), is remote activated and VERY LOUD! I can mount (or dismount) it just under the dodger and aim it at the cockpit floor. Any one steps into the cockpit... **** HORN!!! ****

You can see the one we have at; http://www.homedepot.com/h_d1/N-5yc1v/R-100685862/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 but any one will do.

Just an idea....

And oh yest, it was under $25.00 all up.

Greg