Trailer hitch and harness

[hinten]

I finally took the plunge and bought a boat.

I don't have any trailoring experence and after reading about the harness issues from '02 to '03 and weight problems I wonder if someone can summarize for the rest of us.

I need a 5 wire flat adaptor for a 3000 pound trailor with active breaks. Where did you get the electrical adaptor? Where did you buy the hitch? How high does it have to be?