the one that goes on the body, thats real expensive from the dealer, and has the sticky already on the back , what do you do? just take a knife and peel off the film cover and stick it on the sheet metal? and hold for a minute?
No need for a knife. As said, just peel the plastic backing, align correctly and stick. No need to hold for a minute either as the double-sided tape is some powerful stuff, usually 3M.