Hi guys, The only problem with after market Chinese Sat Nav is the quality of the screen. If sun light gets on the screen that is it. You cant see a thing unless you have a special visor for that which doesnt exist. Genuine units are so expensive for being a good quality and lasting for ages. They are not manufactured in some basement in China using cheap accessories. If you are so in to cheap Chinese accessories why you all driving Toyotas? Go and get yourselves a Great Wall, BYD or Cherry. They are cheap and come with all you can imagine as standard and 3 or 4 times cheaper than used Toyota. Regards