This is not a specific answer to your question, but rather my concern and my action:
From my perspective, a camera can only record what is happening and perhaps provide some insight as to the perps. I think it is a better idea to let the perps KNOW you have security and that they should find an easier target. To that end I purchased and installed an alarm system
12V Alarm system (http://cabinalarm.com/index.html) that is 12V, has no power drain unless activated, and with two sirens (using the very loudest available) if anyone opens any compartment door or access door, it will go off!!
The control box is hidden and the wiring embeded with all of the other wires under the coach. Yes, I forgot one time when I opened a compartment without turning it off and you should have seen the looks from the folks at the storage lot!! I think they may have heard it at the Cop Shop two blocks away!! Just another thought for consideration.
2001 National Tradewinds 7370 mid-entry DP w/CAT 3126b Diesel
Look for the Mardi Gras 'Gators - Laissez le bon temps roulez - Let the good times roll!!