Now I like many other males have avoided sat navs but after the one that was fitted in our ex demonstrater shutdown after 2 years of not paying I decided to make life easier for the boss and register for the free 30 day trial. The company using Smartnav/traffic master has our home postcode which it needs to enter it into our favourites on the menu so I can sel;ect it on the move, otherwise postcode entries mean stopping the car. So now they not only know where we live but also will know how often we travel and how far. How long before this data is aquired by HMG and put to use taxing me? Am I being paranoid or should I stump up for a passive system (if they exist) and stay away from Traffic Master and its big brother computor?