Porsche 911 Boxster Cayman Double DIN Stereo Fitting Kit (PCM3.1/STANDARD AUDIO)

Do I have a CDR31 or PCM3.1 System?. Double Din Fascia Kit(Matt Black). Suitable for fitting Porsche Porsche Boxster, Cayman 981 and 911 991 car models. Porsche Boxster 2012 - 2016 981. Porsche Cayman 2012 - 2016 981.

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