Those era chryslers had a problem with the main wiring connector on the fire wall,the wire comming off the alternator that charges goes through the connector and through the amp gauge sometimes causing the connector to melt making a no charge situation. I had a 68 newport which is mechanically and structurally the same as your 65 and someone rigged that connection,what I did at first was to repair the connection and add another wire to the battery post of the alternator and hooked it to the positive post on the battery and you have to leave the original wire as its the main feed for the car. Even though I installed a newer style alternator and regulator when I installed electronic ignition I left the extra wire to the battery so the charge would not have to go through the amp gauge before it got to the battery. Jeff