i have never put them on before but what i have read on the net and it seems like the say way people tint windows they spray the soapy watter on the window which you could do to the plastic it gives you a little bit of freedom to adjust the sticker around. Then once get it where you like it you use the squeege to push the water out. they do the same tinting windows. If not once it is stuck on there it's stuck.
