www.mymopar.com for the wiring diagrams & when testing get a plastic twist & pull apart fuse holder & solder 2 alligator clips on each end & put it in series at either batt post so if you ground anything it'll pop the fuse. The reg would have a green and a blue wire, one with slotted terminal on the green wire (to the alt) and one with a insulated female connector on the blue wire (the blue is the switched 12V from the ign sw/bulkhead)