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Old 08-05-2014   #16
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Re: no AM on aftermarket radio

Quote Originally Posted by karm777 View Post
And one of original radio.
Strange, the pin 5 near CAN A with the switch symbol should be the power for antenna. But if no wire on the car harness its hard to power anything...

Any other cable plugged facing the other switch symbols on others plugs ?
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Old 08-05-2014   #17
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Re: no AM on aftermarket radio

That's what's puzzling me. The car harness just has the 4-wire plug, speaker plug and top plug which just has 3wires for blue and me system.
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Old 08-05-2014   #18
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Re: no AM on aftermarket radio

Which are the 3,pins marked on the bottom plug on new unit.
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Old 09-05-2014   #19
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Re: no AM on aftermarket radio

Update. Took car to audio fitter today . he said it seems radio and amp are switched via canbus as there is not an amp lead and only a permanent live on car iso block. The radio switches on ok so either canbus is not switching aerial or unit is faulty, either way he couldn't give me an answer ! Very frustrating.
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Old 09-05-2014   #20
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Re: no AM on aftermarket radio

Wow, more complicated than I thought.

I remembered I removed the radio last year, and fortunately I have a pic of wiring :



You are absolutely right : only 4 wires to this plug. So no antenna amplifier signal here.

My information is from Grande Punto documentation. So I assume since evo wiring has changed a lot (more multiplexed).
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Old 09-05-2014   #21
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Re: no AM on aftermarket radio

Thanks again for response. Only options I think I have is to send unit back or add a dab unit to get stations. Unless some bright spark can come up with a solution
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Old 09-05-2014   #22
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Re: no AM on aftermarket radio

You welcome.

Option 1 is to ask the manufacturer of second radio to add code to activate the antenna with canbus. All Punto since Evo would not work with this unit.

Other option, is a lot of work, is to replace your antenna with a Grande Punto one, and put a wire from your unit to the top rear of the car where you have antenna. Not very easy I think
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