I have a 2001 Explorer V8 AWD and i need to tow about 4k filled trailer. I have been trying to find a trailer wiring kit or harness. I have a class II hitch but not wired. I was told by a friend that there should be a harness in the jack compartment but do not really know what im looking for. Im new to towing, so if anyone has any ideas where i can locate the harness already on the vehicle, (if there is one) or on what i need to get to wire it you would be doing a great service for this newbie. Thanks in advance.