Today I installed new maps from the Mazda toolbox and now wonder if I in fact have the latest version. Is there a way of determining what version I have, or what the newest version is? One other odd thing I noticed, which was after navigating to States and then to my State of Pennsylvania I noticed the speed limit signs that were listed were way off as if they were in Metric. I took the car for a test run and the speed showing on the navigation screen showed the correct values.Can anyone else from USA look into their State and see if the speed signs show the weird values as mine or the real ones pertaining to their State.