I had started a thread in the wrong location http://www.bmwmoa.org/forum/showthread.php?t=44540 but wanted to get more info. As mentioned in this thread the Nav 4 version is crippled vs the standard 660. Just curious what is meant by crippled? Not really interested in adding the XM since it is just more costs that I can compensate with mp3s and a blue tooth headset. Still haven't decided on the headset version yet. Want an AD2P capable unit. Hopefully will be pairing a phone (just for curiosity if some calls) and somewhere in the future a radar detector.
From what I have heard the Garmin is the standard for a dedicated motorcycle GPS. Thoughts? Any other experiences?