Stereo & Electronics - Black boxes?

Was wondering what the two black boxes behind the drivers side side panel were. I have a kvt-911 dvd hideaway unit in there for like 2 years and just took it out because im putting a cage in this week and seen the boxes again so I figured I would ask. Im assuming they are the monsoon amps..... not shure if anyone knows im just curious.
thanks,
Joe

i believe shock sensors for alarm??? i could be wrong though

The monsoon amp and the shock sensor both are on the passenger side behind the rear panel that covers the spare.. I'll take a look on my driver's side on my lunch break.. i totally forgot whats over there.

i would appreciate it.