Sorry, it is not GPS but connected to it . My Amplifier ir broken, new is very expensive so I would like to buy used one, but I can not find with the same codes, always one letter or number doesnt match. Question: if I will find another amplifier with the same codes on it, will it really work in my car? And is it possible to brake the code in emlifier, that has different codes then mine? Thank you . My car is Audi A6 Avant 2006. Usual audi sound system.