Here are a few safety measures I took in securing my amps, batteries, and subs

A general list as I don't want to list everything over the internet.
1. A two way paging system with 4 sirens outside and 3 inside.
2. 5 different types of security screws.
3. Metal straps over the batteries.
4. Metal straps over the amps.
5. Box screwed into flase floor.
6. Box also screwed through flase floor to frame w/ spinning lock nuts.