Feature●Function: Help you easily upgrade your original door speakers. Make the upgrade easy and time-saving.●Note: Some specific models may differ in compatibility due to different speaker models. *Please make sure your speaker input is 4 pin. If you have any questions about compatibility, please feel free to contact us.●Compatibility: speaker adapter compatible with Volkswagen Jetta 2004-2018 (not suitable for 2006-2010 Upper Speaker), Passat 1999-2019, Golf 1999-2012, Beetle 2005-2011, EOS 2007-2016, Tiguan 2009-20202. 2 (not suitable for 2 5NA), Touareg 7L 2002-2006, Polo 2005-2017, Scirocco 2008-2012 For Seat Ibiza, Altea, Leon, Toledo, Cordoba. For Skoda Octavia, Fabia, Yeti●Easy to install: without cutting an original wiring harness. One end connects to the speaker and the other end connects to the factory cable. *However, please note the polarity of the speaker cable before installation.●Good quality: Speaker wiring harnesses are made of pure copper and a durable yet flexible PVC jacket to achieve exceptional signal quality and durability.Description