Taking out the head unit will throw a code but you can disable that using a Porsche PIWIS machine at a dealer.
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Maybe true for PCM, but CDR units aren't that closely integrated. Otherwise all aftermarket headunits would have this issue. Only thing visible was that the Audio stuff (station or MP3 tags) no longer show-up in the center display.Taking out the head unit will throw a code but you can disable that using a Porsche PIWIS machine at a dealer.
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