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      http://cgi.ebay.com/...=item2eb213a948
      I'm not trying to promote their adapter, just trying to help out those that are looking to add ipod with charge capability and AUX.
      I cross referenced the VW/Audi pinouts to the Porsche CDR-220 pinous and got it to work. The key thing is that VW/Audi have all of their CD changer pins on the blue mini iso connector. Porsche moved these over to the green mini iso. See images borrowed from TDIClub.
      Blue mini iso as it is wired by Axxess for use on VW:
      Pin#13 - Data To Changer - Axxess wire Yellow
      Pin #15 - Data Clock To Changer - Axxess wire Blue
      Pin #14 - Data From Changer - Axxess wire Brown
      Pin #16 - Power to Changer (+12) Axxess wire Grey
      Pin #20 - Right Audio - Axxess wire White
      Piin #17 - Power Control -Axxess wire Green
      Pin #18 - Audio Ground Axxess wire Black
      Pin #19 - Left Audio - Axxess wire Red
      Removed the Yellow, Blue, Brown, Grey, and Green wires/pins from the Blue mini iso.
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      Pin # 7 - Green wire from Axxess adapter (cdr-220 bus-on)
      Pin #12 - Brown wire from Axxess adapter (cdr-220 changer reset)
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      Pin #11 - Blue wire from Axxess adapter (cdr-220 clock)
      Pin #8 - Grey wire from Axxess adapter (battery or power 12v)
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      I sent an email to tech support at Axxess to let them know of the pinouts I used and suggested they make a version for the Porsche as I know there's interest on this forum. Hopefully they'll work something up.



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