1968 dart wiring harness help

Bought my car in piece's so it's time to install the wiring harness,its ok shape but I'm having trouble with a few wires,there's a single red wire wrapped together with the signal flasher can.also a two prong female connector that shares a white wire with the radio plug,and then there's the factory joint were there a sing black 12gauge wire not sure were it goes any help would be awsome

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