Choke thermostat /RAGE

also note that the alternator main charging wire in stock mopar electrical systems is LONG. it goes from the alt to the firewall (passing through an old connector on each side to get through the firewall). then after that connector it goes to a welded splice under the dash. then to the ammeter. then out from the ammeter back to the firewall. then through that connection back out to where it joins up with the starter relay and battery. that is a long distance with lots of connectors in between where you can have a failure. that's why a lot of people do the ammeter bypass and other connector retrofits like on the mad electric site. and again that's only 1/2 the circuit because if the alternator or block is not getting a good ground then you have double problems.

http://www.madelectrical.com/electricaltech/amp-gauges.shtml