Any members here do this install? i recently purchased one from ebay, and im going to be taking it to a local shop to get the work done. but my main concern are, is there anyway to get the nav to work like the factory nav does, meaning with out sacrificing music just to have nav on the aux port i seen some people say that they were working on a method to integrate the mute button so that it can mute out the music when the nav's speech was getting ready to come on. is this possible if so anyone have any solutions? has anyone had success with this. thanks