1.Steering wheel works well.
2.Touch screen will be use via finger and pen.
3.If you are in the USA, when you Click AddtoCart, please select options with 2GB SD card and map ,we will provide map of USA.
4.Yes ,we are professional to provide car dvd product, and also sold many of these every month.
5.We normally process your order in 1-3 days, and your order will reach your door in 3-5 days.
Yes, we are located in China.
6.Yes, the shipping cost is USD$78.
By
Seicane