neilmc0

Hi All, Hope you can help, I want to do a few things to my A4 it's a 57 2008 3.0tdi Quattro Cabriolet. I've fitted the 3.5mm line in aux cable put need to alter the coding number 37, also want to activate the eject button for the nav disc to put a newer one in and in time I'd like to add cruise and guess it will need something doing. Could you advise the cheapest tool that will do these few bits, unless anyone around Barrow In Furness could help. Thanks