| Guys an even better tip is to have a small film of water and washing up liquid on the panel, apply the decal and it will "float". When in position use a credit gard or similar and squeeze the water out from under the decal.
DON'T put loads of water on the panel, just enough to give a thin film.
If you want the "factory" look then get it laquered, but, you could leave it as is and swap and change decals as the mood take you. | 
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