There is drainages for water. If I am in a water hole that deep my computers are under water as well so sucking water is not a concern at that point. In the notes the kit said to clear snow from the vents before starting.
It is not any louder in the cab than normal. under heavy acceleration. I get a whistling nose coming from the glove box area but I am not concerned about it enough to pull it all apart to seal it.
The kit was real easy to put in the only thing is it did not give any direction on what to do with the vapour/bather tube from the fuel tank filter canister, if that all makes sense (I don't know what the thing is called) I cut it off and tied it down and the rocker cover vent line was to long so I shortened it.
All the switches have a purpose and I have found they are in a very logical layout. the only ones not being used right now are the, Front locker - I don't have one yet , Wind shield lights will come with exo cage, and one rock light will come with exo as well.
The best switches I have ever done and will recommend to anyone is hard wire your winch into the rig. where mine is they are very easy to use. I set it up that the "winch" switch powers the "in and out" switch so I cannot accidently bump the winch when driving. this set up gives very accurate control and no delay unlike the remote control that warn has.