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Old 04-06-2019, 07:58 PM   #1
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Default d21 Antenna

So I lost AM radio this last week, and today I went to try and find out, I had noticed that the antenna wire was routed through the door jam of the vehicle, further inspection found that it was a replacement antenna that they didn't bother routing through the fender like the OEM.

so the OEM wire was cut in 2 places, and for the life of me I cant fine a wire diagram that shows how the AM and FM wires are hooked up for the radio.

what I guess id like to get is a diagram showing factory routing of the antenna cable, and how they hooked up the AM part. I have found replacement antenna on ebay, but they are the same ones as the replacement the vehicle already has.

with the replacement just plugged in to the radio, the vehicle lacks AM radio still. so the replacement does not have AM built in to it? not sure what I am missing here. this is a bit beyond me at the moment, so any and all info about this system would help me out, as I am used to hooking up an antenna and being done with it.

I do know the windshield has the line down the middle of it. that's suppose to be the AM, I have no idea how to tap in to that though.
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Old 04-07-2019, 01:32 AM   #2
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Nissan used a funky odd connector for the antenna. I had to buy an adapter when I changed my head unit.
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Old 04-07-2019, 01:37 AM   #3
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Did you try Crutchfield ?
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Old 04-07-2019, 02:07 AM   #4
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I figured it out, Aftermarket antenna is a OEM replacement, but the issue was not the Antenna, the radio for whatever reason needed to be unplugged and plugged back in to get a signal from AM again. The strip in the windshield is another antenna Nissan used, their is an factory adapter in the dash that allows both antennas to be used with a factory head unit. weird, wonder why nissan did that?

long story short, i will be able to run the OEM antenna through the OEM holes at some point, for now the Antenna is sitting on my dash so i can still have a signal, i dont want to take apart my dash just yet.
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Old 02-07-2020, 12:25 AM   #5
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Sorry for the bit of a necro post.. related...

Does any one know what the thread of the antenna is.. and can I use any single piece vehicle antenna, to replace a missing one?..
The boss is there, just no antenna...
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Old 02-13-2020, 09:41 PM   #6
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I replaced mine with one off eBay. Did not fit well at all. Found a used OEM one in a junk yard. The eBay one went in the trash.
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Old 02-13-2020, 11:56 PM   #7
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Just run a wire coat hanger through the fender until you see it on the inside. Then tape the wire to it and pull. I did it when I swapped my fenders. Kind of a pain but doable.
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Old 02-15-2020, 02:18 PM   #8
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I think I Tied mine to wire. Did it a long time ago.
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Old 06-11-2020, 07:08 PM   #9
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I ended up finding the thread of the stud in the mount, its an M5 thread...
I tried looking around, but couldnt find the length of the antenna from boss to tip??

Any one have a quick measurement of one???
Edit: I think 30" is what im seeing...

Last edited by FlintJunkie; 06-14-2020 at 06:01 PM.
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Old 06-11-2020, 07:46 PM   #10
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Quote:
Originally Posted by FlintJunkie View Post
I eneded up finding the tread of the stud in the mount, its an M5 thread...
I tried looking around, but couldnt find the length of the antenna from boss to tip??

Any one have a quick measurement of one???
Edit: I think 30" is what im seeing...
Yes I measured mine @30"
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