I plugged in my 2002 coleman Cheyenne today at camp backyard. Used a probably too long extension cord and an adapter to get to the plug-in. But now what? I have no idea what the next steps are to getting the lights on. Any step by step videos or lists would be much appreciated. Only videos i have found are just people sitting and talking about the power. I need to be washed through it. I admittedly didn’t check it when i bought it, no source and the previous owner said he never used the battery mounted on the hitch. So there is also that, how do i hook it up? The manual didn’t really go into specifics, or i am missing it, if it did. Thanks for any input.