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Raspberry Pi as CD changer in pre 09/2002 E46 BMW 320i touring

Posted by jpluimers on 2018/10/05

My pre 09/2002 E46 BMW 320i touring didn’t come with a CD-changer, and since the Business CD head-unit didn’t support the regular AUX mechanisms (see links further below), I’m researching how to add a Raspberry Pi as CD-changer.

A few things I want to accomplish:

  • Raspberry Pi powers up as it has ignition signal
  • Raspberry Pi powers down soon after it has lost ignition signal
  • Connected via the CD-changer connectors (iBus and audio) in the back

Some links:

Supplying power:


If the model was more recent, it would at least support AUX, but it doesn’t by default and the work-arounds seem to emulate a CD-changer after all:

Other car types:

And finally:




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