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Audi TT Mk1 Bose Stereo upgrade DIY guide. How to wire up Bose to Pioneer radio. No popping sounds! - YouTube
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quattroworld.com Forums: Yeah, the radio's (Concert/Delta/Chorus) are configured to run Bose and non Bose systems.
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AUDI TT MK1 Chorus Tape Player*Cassette*Radio*Headunit*BOSE*Stereo*CODE Inc*MINT £199.95 - PicClick UK
![Amazon.com: Headerbs 20pin 8pin Car Stereo Adapter Bluetooth 5.0 Audio Adapter Radio Connector Fits for A2 A3 8L 8P A4 B5 B6 B7 A6 A8 TT, Fit for Chorus 2 : Electronics Amazon.com: Headerbs 20pin 8pin Car Stereo Adapter Bluetooth 5.0 Audio Adapter Radio Connector Fits for A2 A3 8L 8P A4 B5 B6 B7 A6 A8 TT, Fit for Chorus 2 : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61vBCd7h4OL.jpg)