Just a bit of feedback about ur gps antenna installation. I'm pretty sure ur position is ok but just incase anyone has any problems or decides to try somewhere else, you will get bad signal if you mount the gps antenna under anything metal, main thing being the big beam that runs behind the dash. It really restricts signal, it's as good as putting the receiver inside a tin can. It's always best to have the magnetic part facing down too, some receivers only work one particular way up, others work any way up.