1....Numbha whone is to see if you have power "past the battery clamps." Could be dead/ bad battery, poor battery post connections, bad cables.
2....Get a meter, a test lamp, and some alligator clip leads. You used to be able to buy them at Radio Sh## I don't know about lately
3....Get yourself a copy of the factory service manual, and if you like, an aftermarket wiring diagram. These can be had free over at MyMopar. Some of them over there came from the guys here
4....Take your test lamp or meter, turn on the headlamp switch and leave it on. Anything? Put your test neg clamp to ground (light or meter) on the engine block. Stick the POS lead on the battery POS clamp, power? stab directly into the top of the post. Power? If not, move the ground connection directly to the top of the battery NEG post. In other words, "step" along the path until you find where it's lost.
Power should be present on the starter relay "big stud." This takes off with a FUSE LINK which feeds in through the bulkhead connector. Either of these are suspect
