Can I Change Audio Concert With A Navigation System On A3

Hi

I like to ask, if anyone know, if i can change the concertII audio system with an Audi navigation system in my A3 (mod2004)

Thank you

You could provided it fits in the dash, you would have to measure it. Also if it is the version without a built in aerial/antenna then that needs to be fitted, but most are built in. There might be other cables needed, I have not tried it myself.