I did the same thing as you, tough. I turned off the GPS functionality in RR but still have iGuidance running. I don't think XPort has anything to do with it. I think its the option where it shows you what city you are in (which is always usually 20mi off for me for some reason anyway so its pretty useless) on the main screen or it has something to do with the fuel finder. My RR is running but I have no speed or compass in RR because its all disabled.