I'm not overly fond of GPS on a motorcycle. A big reason why I ride is for solitude. That's why I'm not a big fan of sound systems either. However, on those times when I'll want one or the other, the phone hooked to the USB in the saddlebag works fine. Haven't really had a chance to put it in actual use yet, but I have tested it a couple times and it works great. Biggest thing to consider is whether you want a GPS that finally gives up on you completely if you go your own way or one that insists on redirecting you to your stated destination until you shut it off. Oh, I should say I use in ear monitors as ear plugs even with the sound off, so I'm not relying on directions coming through the speakers.