Clean your automobile inside and out before applying the 3M vinyl wrap. In addition to a thorough cleaning, the application area should be dry and free of dust, debris, and moisture. Your car has to be cleaned the day before you get the vinyl professionally installed, at the very latest. Remove any external hardware and make sure every inch is cleaned, from the headlights to the taillights. Dry it by hand or leave it overnight after you’ve washed it until it’s completely dry.