Grinning from ear to ear
Ok, I was reading through the online Nav System Manual, and came across an "Optional" feature. It seems that some Nav Systems come with a DSP feature that you can use to fine tune frequency volumes, and use preset sound settings (ie echo or hall). Do the US versions of the Nav system (for E46 3series) have this DSP or is this just a pipe dream? If not, who does get this "enhanced" version of the Nav/Sound System?