Why not go with Warn's recommendation? If you bought it used and don't have a manual, email them.I've heard they give good customer service. Heck you might find it online. Reputable winch sellers like Harbor Freight make the manuals available online. <img src="/forums/images/graemlins/smile.gif" alt="" /> I agree with BJ though a direct battery connection is best IMO. <img src="/forums/images/graemlins/cheers.gif" alt="" />