Rakishi64
Member
I bought a 72 Charger last November and have been slowly working on improving it. Right now I am trying to identify what's been done to the wiring so I can see if an upgrade/rewiring is still needed. I've read about some people doing a parallel system, while keeping the stock ammeter, to help handle a new alternator and accessories. I am unsure if that is what has been done here.
There is a second thick gauge red wire coming from the starter relay, through the bulkhead to a 12v relay under the dash on the driver's side. A yellow wire is spliced in to the red wire and connects to a second relay. On the first relay there's a green/white wire that runs back through the bulkhead and turns to a brown/white wire that connects to the ignition ballast. The third wire is a blue wire that is spliced to a black wire in the steering column. The final wire is a green wire that connects to a stud under the dash which has another green wire that connects to the second relay.
On the second relay there is the abovementioned yellow, and the green wires. The last two wires are a yellow/brown and brown wire that connect to a cluster of wires under the steering column.
Is this just another way to make a parallel system to handle the aftermarket radio and other accessories? With this system is adding a new alternator below 85amps safe if I ensure the correct wire thickness coming from the battery and alternator? Thanks in the advance.
starter relay w/2nd red wire
1st 12v relay
2nd 12v relay
There is a second thick gauge red wire coming from the starter relay, through the bulkhead to a 12v relay under the dash on the driver's side. A yellow wire is spliced in to the red wire and connects to a second relay. On the first relay there's a green/white wire that runs back through the bulkhead and turns to a brown/white wire that connects to the ignition ballast. The third wire is a blue wire that is spliced to a black wire in the steering column. The final wire is a green wire that connects to a stud under the dash which has another green wire that connects to the second relay.
On the second relay there is the abovementioned yellow, and the green wires. The last two wires are a yellow/brown and brown wire that connect to a cluster of wires under the steering column.
Is this just another way to make a parallel system to handle the aftermarket radio and other accessories? With this system is adding a new alternator below 85amps safe if I ensure the correct wire thickness coming from the battery and alternator? Thanks in the advance.
![bulkhead frm engine.jpg bulkhead frm engine.jpg](https://www.forbbodiesonly.com/moparforum/data/attachments/819/819583-8aa78804004e08da515531bd49328698.jpg)
![first 12v relay.jpg first 12v relay.jpg](https://www.forbbodiesonly.com/moparforum/data/attachments/819/819584-6739fd98aac3d5462879f6d777efc833.jpg)
![second 12v relay.jpg second 12v relay.jpg](https://www.forbbodiesonly.com/moparforum/data/attachments/819/819585-c84a9dbdf75d9a86ebac120f7e1c3e73.jpg)
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