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Wiring harness required for aftermarket HU on S3 bose?

sportstractor Dec 12, 2010

  1. sportstractor

    sportstractor Chugger

    Hi all, I need to know if I require a harness to fit a new headunit to the S3? From what iv read its just ISO connections in behind, can anybody confirm this? Also i'm planning on running dedicated RCAs to the AMSS :yes:

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