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  #11  
Old 03-05-2019, 06:09 PM
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Quote:
Originally Posted by Wangwolf View Post
You ordered the avant 4 right? Mine came with a pigtail off the main harness for the iBus USB
Quote:
Originally Posted by mr_robot View Post
Yes but my harness will be at the trunk so I want to confirm if I should extend the wires or get a USB extension.

USB extension being the easier option.
Maybe I misunderstood but if his harness with the iBus pigtail is in the rear, then the CD changer 3 pin connector is inches away
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  #12  
Old 03-05-2019, 06:15 PM
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Yes but the USB port is still on the headunit up front.
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  #13  
Old 03-05-2019, 06:35 PM
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Originally Posted by mr_robot View Post
Yes but the USB port is still on the headunit up front.
Yes, I misunderstood then. I thought the Android harnesses were based in the rear for previous factory nav units. I don't have nav so I don't know the harnessing.
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  #14  
Old 03-05-2019, 06:40 PM
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Basically the plug you have behind the dash is in the trunk under the spare wheel.

So we use the provided Harness to connect there and extend the connector that goes in the radio all the way to the front.
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Old 03-05-2019, 07:05 PM
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If you want to tap into the LCM wires, pin 36 is iBus and you can grab pin 39 for the reverse signal to the rearview mirror so it is not a PWM signal.

https://www.newtis.info/tisv2/a/en/e...0i-sav/rikN3Ho
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  #16  
Old 03-05-2019, 07:07 PM
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^Nice info. I'm going to try that method for the iBus data wire. Will report back as to effectiveness. Thanks OB.
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  #17  
Old 03-05-2019, 07:57 PM
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Quote:
Originally Posted by mr_robot View Post
What would be the difference between extending the ibus wires vs the USB end? Really baffled.
a ton of difference...

USB is a high-speed, short distance data bus with very little error correction.

iBus is a low-speed data bus designed to run in (electrically) noisy environments over long wires and has robust error detection/correction.

Guess which one will stand extending...
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  #18  
Old 03-05-2019, 08:34 PM
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Originally Posted by wpoll View Post
a ton of difference...



USB is a high-speed, short distance data bus with very little error correction.



iBus is a low-speed data bus designed to run in (electrically) noisy environments over long wires and has robust error detection/correction.



Guess which one will stand extending...


Ah ok thanks for that, I was thinking it was just as simple as flow of electricity.
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  #19  
Old 03-05-2019, 09:30 PM
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There is no advantage to putting the adapter in the back of the car. Using my howto you can see where to tap into for the ibus adapter. Any device in the car that is on the ibus will have the same "signal" quality no matter where it is. Its a bus not an antenna wire.
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  #20  
Old 03-05-2019, 09:40 PM
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This page shows you everything you need to know to install the ibus adapter :

BMW IBUS Adapter – Android | Crowz Nest

Note I had the factory nav so this install is exactly like yours except I didn't have dsp which has no effect on how to install the ibus adapter anyways.
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Aftermarket E53 Radio Install
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