[wiredgeorge]

This is excellent advice. The blades that the wires are shoved into don't hold the wires over time as electricity has some vibration. We had these type boxes installed in our home but I have since replaced all of them with the type where a tightened screw holds a stripped wire wrapped around it. The best info in Chuck's write up was where to find the shallow boxes. These are needed as the walls in an RV are too thin for regular stick-built home boxes. Thanks Chuck!