Salt water is certainly one of the easiest wayways to destroy a camera. The salt can cause corrosion which is impossible to undo. I would avoid connecting anything to it as an internal short-circuit can damage the other item.
Something similar happened to me once where a flash reader fell. I wanted to see if it still works, so I put in a Compact Flash card which got fried. Of course, I did not know and simply concluded that the fallen one was broken. I therefore later inserted latter the CF card into another reader which short-circuited and starting outputting smoke. Needless to say, from one incident I ended writtingwriting off 3three items. The 1GB CF card cost $1000 CDN at the time :(