I installed my avic d3 last night, did bypass and everything works good DVD and navigation while driving. My question is how do you put in a destination for the navigation? Also, when I have the navigation mode on it is nothing but a blue screen with the nav menu buttons on the side of screen and an arrow in the middle of the blue screen. What am I doing wrong here? It is a brand new gps antenna from eBay, but there is a ton of people on here using them so no need for smart comments on that. Thanks Guys.

As far as actually using the unit and entering a destination, I would suggest downloading and reading the manual

http://www.pioneerelectronics.com/pio/pe/images/portal/cit_11221/417273154AVICD3OperationManual0221.pdf

For the GPS showing you in odd places, pull the unit out and make sure the GPS wire is plugged in all the way. I installed some headrest monitors about a month ago and when I pulled the unit out to run the video wires, I didn't plug the GPS wire back in all the way and it was showing me in all kinds of places... started off with it showing me in some lake when I was in the drive through at Wendys, then the next day I was in New Jersey apparently... and I'm in Florida...