here is my understanding base on u guy's suggestions:
1. rinse the car with a lot water
2. apply a Soap cloth entirly on the car
3. rinse the soap off and rinse the car again and tower try the surface
4. use a clay bar
5. wax(do i need to rinse again before wax???)
6. rinse?? do i need rinse it after wax???

done

am i right? wht u think?