the topic does not fit 100% into the safety forum, but the guided driving increases in the end effect also the traffic safety to my question: since I now tend to a (refitting)navi system for my car, I would be interested in which system is recommended – it should also have a reasonable cost-benefit factor, be relatively easy to integrate into the vehicle, be guided and work in the eu-foreigner. and it comes to me a few solutions in consideration: * gps radio navisystem in the din shaft * pda with gps + navisoftware * standalones (zb tomtom go) What experiences did you have and what would you recommend?