Usually you need two keys to program a Remote on any Audi TT A3 A4 a5 a6 or Volkswagen Jetta Passat Golf Rabbit or GTI This works MOST of the time to program your remote keyless entry Sometimes if your battery dies in the remote or in the car the key loses its memory and needs to be reprogrammed I also have a video on how to do it if you have 2 keys and remotes
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Try it out and comment down below if it works for you too!
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should work with most 2000 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 and 2016 models.