I did a search and noticed that no one has mentioned my specific problem. Obviously my map is stuck in California, but when I go to the Hardware Info for the GPS I get a notice saying "Problem with GPS antenna. Please contact Pioneer or dealer center." It's picking up 8 satilletes and it says the installation location is "OK". One thing to note is the back signal is "Low." Can anyone provide any insight as to what might be the problem?

i would replace the att. or make sure the connection is good, as for the back signal, that only tells the d 3 that ur backing up and its also for a back up cam.

I had the same problem with 2 units, Im on my third now. This problem occurred after about 6 months and would place me in NY city. In my case it was a failure with the unit and I suspect it is the same with yours. Luckily the place I bought my unit from has a good warranty policy as they have given me a 500.00 dollar credit towards my F90.