Originally Posted by cb1111
That said, if someone wants to install a hokey nav system that comes with a tiny screen and might come close to equalling the sound quality of the base BMW system, then that is their decision.
Id the unit cutesy? Yes. Would it be a great way to ad navigation? Sure. Does the quality (physical and audio) come near OE? Nope. Can it cause warranty issues? Possibly.
Do you have any base for these claims or they just your personal thoughts and opinions?