After successfully taking a vinyl sticker off my car, I have again put another one to replace the previous sticker, and for those who do not know how to apply a vinyl graphic sticker, here is how to do it:
First you have to clean it by washing the area with warm water and dishwashing liquid, and then dry the vehicle surface with a clean towel cloth.
Finish up cleaning by wiping down the entire area with isopropyl alcohol. If you think your vehicle is clean enough, you do not have to wipe it with alcohol.
Apply the vinyl graphic sticker with a very weak solution of soapy water, this way you get the chance to move and reposition the vinyl as needed several minutes. Once the vinyl sticker is in place, use a squeegee to take off the excess fluid and air from behind the sticker. Start the squeegee from the middle of the sticker, and use it straight up or down motion. Allow the vinyl to set for 15 to 30 minutes before removing the application tape. On removing, always pull it slowly back onto itself at 180 degree angle and any bubble left should be punctured using a pin.