How do you tell if the Display has GPS or the vehicle in the wrecking yard has GPS display?
Part number would be a good start I think.
99-03 Display screen without Navigation: 211829
99-03 Display screen with Navigation: OEM 86110-48030
However I have seen the display listed on Ebay that says it does not have navigation but still shows the same part number on the outside of the case as one with navigation. That being said I am not certain how to tell without actually plugging it in and turning it on.