The Warn contactor for the winch on my Rincon is mounted under the seat where the tool kit normally goes. It's almost a custom fit for the contactor. Here's a link to a previous thread about the same subject (I don't know how to make it a hot link, so you'll have to copy and paste to your browser to open it):
http://rincon.atvowners.com/index.cfm?action=thread&catid=25&topid=141&thrid=8486#p65687
Click on Topgun's profile line in that thread. He has a picture of a contactor mounted in the exact same spot as mine. Good luck.