I have a 1987 Ford E-150 that has the 302 in it. I am having some wiring issues. The conversion van has the indirect lighting switches on the overhead console. At one point all the 12v DC ports worked. One day I was using the lights in the front ceiling (Turner on by the headlight switch turned all the way to the left) and I had a spotlight connected to the 12v DC port on the dash, when the light suddenly turned off and the spotlight also quit charging. Now since this event, if the key is in the ignition and the door is open the buzzer does not come on unless I flip the switch on the overhead console for the lights on the ceiling. The 12v DC port does not work UNLESS I have the headlight switched turned all the way to the left and the switch on the ceiling console also on. My lights on the ceiling also do not come on when I open the door. Please help if more information is necessary please ask!