Ok, so I am not new to automotive stereo installations, and I took my time with the install of this unit to make sure everything was done properly. First off, the unit is installed in a 2002 Lexus IS300 and I bypassed the unit as per instructions found on this site. With that said, here are the issues I am having: When I originally installed it and didnt reset it, It would allow unlocked functions while in motion, but would not give me any voice guidance once the route was entered. All I got was a "you have arrived at your destination" once I arrived. Also, the icon on the screen used to denote the car is rarely actually shown on the road. It usually ends up to the right or left of the road. Another issue is that the VSS connection doesnt seem to be giving me a proper reading, and I am 99% sure the wire is connected to the proper wire on the car. I went so far as to order a wiring diagram manual direct from Lexus as a way to confirm any wiring diagrams I found on the internet, which it did. For what this unit cost me, I am pretty upset with it not working how it should. Please help!!