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Old 14th May 2010, 09:13 PM   #1
diyAudio Member
Join Date: Mar 2007
Default Alpine ida usb to ipod cable pinouts?

Anyone have the pinouts for an alpine usb to ipod dock cable for their ida-x100 deck?

I have a deck that's missing the alpine usb cable and the deck wont work with a regular ipod cable.
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Old 12th November 2015, 03:45 PM   #2
diyAudio Member
Join Date: Nov 2015
This is correct, a normal USB cable won't work.

Here is a link that may help you:
Alpine USB iPod connection for iDA-x001,100,200,300 pinout diagram @

1.) The accessory detect pin (number 21) is connected to USB GND via a 191kOhm resistor. This resistor sets the iPod in "iAP over USB" mode.

2.) The AUDIO_SW pin is directly connected to USB GND. This internally routes the iPod audio to output on pins 3 & 5 rather than the 3.5mm headphone jack. I am not sure why this connection is made since no analog audio data from pins 3 & 5 is transmitted on the USB interface. It is however necessary for the interface to function correctly.

The pin N15 -(GND) should be connected to pin 16- (USB GND).

Using this guide you should be able to construct your own cable using a standard white USB interface cable available from ebay. Simply open up the iPod dock connector and solder in the resistor.
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