Wired my roof pump today...and nothing... I have a 715 cranking amps marine battery, 5850 delevan pump, a 30 amp inline fuse and a switch. I can't even get the pump to make a noise. It has to be the wiring. It's a brand new pump never been used. Take a look at the pics and see if any of you can help me out. I'm really curious about one positive wire that is connected from the motor back to the head of the pump. It came pre-connected and I left it the way it was. I used 12 ga 3 conductor wire... I can't find a detailed wiring diagram anywhere. Any help is much appreciated.