Thank you Alazgreg for your reply. I downloaded the gpsdebug but it cannot do anything. I do not know if it running at the background but it is not showing something. The thing is that the gps monitor application of my car shows there is connection with 6 sattelites as well as the primo app runs smoothly and locks the sats in about 5 secs. This thing will drive me crazy!! But you mentioned at the first post that 2din screens are not 100% compatible so I have to live with that.