2 65 ponchos wrote:

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Hi 4SPEED427,

Thank you for your reply. I am not really in any hurry but I do have the dash all apart now So sometime in the next week would be good. This is a picture of what I have. I would also like to know what to buy for the rear seat speaker.

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I dug out what I have here. I can't find my factory wiring diagram right now. 

I'm doing this by memory, it's something I did on a few 66's way back when.  

So in the picture, the connector top centre with the yellow and green wires going in to it should look like what you have now plugged into your AM. 

Anyway, with the rear speaker setup you unplug that connector from the radio and plug it into the connector in my picture that has the brown wire (a continuation of the yellow wire) and a black wire with a green stripe. The brown wire goes into the connector in the left of my picture. That connector with the brown and green wires now plugs into the back of the radio. Brown (originally yellow) should be fused 12 volts. Green is the speaker output from the radio and it feeds into the speaker switch. The switch either feeds it back out to the black/green stripe only, the black/white stripe wire only or both (to give front and rear speaker at the same time).