How to replace your Audi A4 key battery and resync/program it to your car

In this video I will show you how to replace your key battery and is needed how to repair it to your Audi A4 B6 for under £1!. I will try to find out what models this method applies to so that I can update the video description - if this works on your car which isn't in the description please let me know. Music: EDM Detection Mode by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/